1. The subject: the ItCC’s approach towards the ECHR and the CFREU through the lens of interlegality

This article investigates the behaviour of a national Constitutional Court in the application of supranational fundamental rights. It examines the stance of the Italian Constitutional Court (ItCC) on the European Convention on Human Rights (ECHR) and European Court of Human Rights case law (henceforth, ECtHR or Strasburg Court), the Charter of Fundamental Rights of the European Union (henceforth, CFREU or EU Charter), and the corresponding Court of Justice of the European Union (CJEU) case law.

Since two seminal judgements of 2007, the position of ECHR as part of the Italian legal order and the ItCC’s role to assess compliance of domestic legislation with the ECHR and the Strasbourg Court interpretation are quite stable. On the contrary, the relation between domestic legislation and EU norms has been recently re-shaped, giving rise to a new turn of the ItCC approach towards EU fundamental rights. For this reason, this article will provide only an overview of the main trends of ItCC case law on the ECHR, while it will focus deeply on the ItCC recent judgements on the interplay between constitutional and EU fundamental rights. The general aim is to verify if the course of the ItCC could be described in terms of openness or closedness. We understand openness as an effort to practice loyal cooperation with ECtHR and CJEU through procedural means and, substantively, as greater attention for the norms of their respective orders. On the contrary, we intend closedness as setting aside all forms of procedural ties with the supranational Courts and voluntarily dissociating from the outcome of their judgements, with the purpose of prioritising domestic constitutional provisions.

To conduct this analysis, we chose a particular lens: the theory of interlegality. This theory gives some useful tools to analyse the ItCC orientation towards supranational fundamental rights, for two reasons, evidenced in the following statement: Constitutional and Supreme Courts operate ‘[…] on the borders between several normative orders and their different basic objectives’ and may ‘not be accountable solely to the order to which [they] belong, since performing the tasks of justice imposes a new responsibility to uphold the full range of normative complexities involved, to avoid injustice and partiality in decisions, and to put first the effects on those subject to their authority’. ^{Footnote 1} This statement indicates two features of interlegality. First, those Courts have a broader accountability to the normative orders on the borders of which they operate. Second, they must avoid ‘injustice and partiality’, aiming at the better level of protection of the individual subject, the applicant. The first aspect seems to concern formal mechanisms, languages, and structures of inter-relation between legal orders. In fact, the theory of interlegality places particular emphasis on the ‘loyalty’ of Constitutional and Supreme Courts to international and supranational systems of protections of rights and, in this sense, is a useful support to analyse the ItCC liability to all systems of protection. The second aspect seems to emphasise the degree of substantive integration between Charters of Rights necessary to pursue justice, impartiality, and the highest individual protection. These two sides of the coin, formal coordination and substantive integration, inform this contribution. In fact, the first part of the article is devoted to the ItCC orientations towards the mechanisms of coordination with the ECHR and the CFREU. The second part considers the degree of integration between ECHR, CFREU and Italian constitutional rights, discussing the existence and workability of the highest level of protection as a substantive criterion to coordinate them.

We can already anticipate the answers concerning these two levels of analysis. On formal coordination, the preliminary conclusion is that, over the last decade, the ItCC has not ignored, indeed it continues to develop, instruments able to clarify the force and meaning of supranational norms and to increase channels for inter-relation with the supranational Courts. Concerning the higher level of protection, the answer is double. On the one hand, we consider, as many authors, that no maximum level of protection of an individual right can in fact be determined and that therefore this cannot be a criterion for coordination between fundamental rights. On the other hand, it is true that the ItCC adopted a criterion referred to the ‘the greatest expansion of guarantees’ to coordinate Italian and supranational fundamental rights. However, as we will see, this criterion does not relate to the maximum protection of an individual right alone but enables the ItCC to harmonise the Strasbourg interpretation of rights with other constitutional rights and interests. Thus, the very formula ‘maximisation of protection’ offered by the ItCC serves to guarantee the unity of the constitutional system of rights in the face of the particularised vision offered by the Strasbourg Court. In the end, this criterion mirrors a theory of the Constitution as a whole, rather than a substantive factor for one right to prevail over another.

In conclusion, the ItCC trends concerning supranational rights express loyalty and deference, while retaining a margin to ensure the vitality of the domestic Constitution. This approach has been further strengthened in recent months, after the rule of law crisis and the beginning of the war in Ukraine, as evidenced in the latest Annual Report on the ItCC Activity in 2021. This Annual Report contains an invitation to the other EU Member States’ Constitutional and Supreme Courts to interact with the supranational Courts constantly and fruitfully, because only in this way can the existence and durability of the European Union and its founding values be guaranteed.

Let us now proceed, presenting some features of the theory of interlegality and discussing in more detail the boundaries of our work.

2. Some features of interlegality, and the structure and limits of this analysis

The current legal spectrum of norms has been described as ‘a mixed environment that weaves together regulatory regimes and legal orders of different territorial, political, and social levels, endowed with distinct organisational and regulatory shapes, independently capable of virtually reaching different recipients on a spectrum that varies from sub-national to State, to international, and regional and global levels’.Footnote ² In general terms, the theory of interlegality embraces the plurality of legal orders and the fact that they are reciprocally irreducible. This theory is based on several premises that may be summarised as follows: (a) the material interconnection of objects and situations contextually relevant to a plurality of regulatory orders; (b) the movement beyond state orders; (c) more generally, the inadequacy of the concept of a closed and self-sufficient legal order to explain current legal phenomena; (d) lastly, the fact that each system is able to identify which rules are valid and applicable according to its own rules, yet these remain silent and are unable to answer the questions that arise between different systems and whose solution lies beyond each of them.

Moreover, the theory of interlegality does not aim to be merely descriptive but also to be normative. From this perspective, the theory concerns the law and production of legal norms, adopting a Kelsenian approach. It argues that monism and dualism are unable to explain the relationship between the domestic, the international, and the supranational legal orders: monism refers to a closed order while dualism assumes that the two orders run parallel, one permeating the other only through transposition and by considering external sources to be factual. On the other hand, concerning the coexistence of many regulatory frameworks, interlegality argues that the radical form of the theory of constitutional pluralism is questionable since, although it recognises the plurality of competing legal orders, it does not envisage instruments of coordination but relies on the voluntary participation of players from different systems.Footnote ³ Interlegality therefore, in our understanding, aims to manage mechanisms, safeguards, languages, and structures in the relationships between different legal orders.

This article does not cover the whole spectrum of issues addressed by the theory of interlegality. The theory has been developed as a means of understanding the current plurality of regulatory systems and how they interact at different levels: national, supranational, international, global, public, and private. Our research is limited to a ‘regional’ dimension, ie the European area encompassing the national legal orders, so the Council of Europe, and especially the ECtHR, and the EU legal order, insofar as they both interact, with their different features, on the domestic order. Secondly, these systems are closely linked by institutional forms of coordination. Suffice it to recall that national courts are structurally responsible for implementing all three systems of protection. This institutional pattern might suggest that the relationship between national and supranational Courts in the European space does not constitute a fertile ground for the theory of interlegality, meaning that it adds nothing more to the existing institutional and structural mechanisms. However, as said, it remains true that the debate between monism and dualism is still unsettled and the rules of reference of each system alone are insufficient to explain the behaviour of the Courts. This is the reason why, in our opinion, even in a context of a strong institutional bond, the theory of interlegality retains its use as a lens for analysis and interpretation.

Our focus on the judicial dimension, especially on the way the Italian Constitutional Court (ItCC) acts in this context, is consistent with the premises of the theory of interlegality. According to the theory, not only a valid norm, but also broader rationes and competing principles must be applied in complex cases; the highest courts should fulfil a dual function, ie they must perform their duties of institutional loyalty,Footnote ⁴ but they must also consider the reasons supported by competing normative orders. Nevertheless, this focus on the judicial dimension is also a limit of our analysis. The intersections between European legal orders consist of tools of institutional and political coordination other than judicial intervention. These instruments include structural non-judiciary mechanisms and even purely political debate. In fact, analysis of this debate would perhaps reveal the perception of political actors vis-à-vis the degree of coordination between systems of protection and the acceptability, desirability, or advisability of varying levels of integration. By way of clarification, as a non-judiciary tool of coordination, we might consider the Council of Europe mechanism for the execution of judgements under the Committee of Ministers. Regarding political debate, we might recall the lively Italian debate on the ratification of Protocol no 16 ECHR.Footnote ⁵ None of these topics are covered here. On the other side, at the EU level Italy fulfils the obligations arising from its membership of the Union, passing the so-called European Law and the European Delegation Law each year in accordance with Law no 234 of 2012.Footnote ⁶ These instruments too, as well as the corresponding political debates, are beyond the scope of this essay.

3. The current orientation of the ItCC regarding the ECHR

Our first purpose is to highlight and measure the ‘loyalty’ of the ItCC to supranational fundamental rights and their interpretation by the ECtHR and by the CJEU. Our analysis will begin with the ECHR.

Before 2001 the ECHR obtained the force of ordinary law upon ratification and through an execution order. Legal scholars tried to find a constitutional ‘anchor’ for the ECHR, and several possibilities were suggested in an attempt to assign the Convention a higher position in the internal hierarchy of norms.Footnote ⁷ However, the ItCC rejected them all. Nevertheless, especially during the late 1980s, the ItCC increasingly referred to the ECHR to supplement the provisions of the Italian Constitution. Thus, before 2001, while the ECHR formally enjoyed the force of ordinary law, in practice it was already treated as an interpretative tool to support constitutional rights at constitutional level.

The Italian Constitutional Law no 3 of 2001 added a specific reference to international obligations to Article 117, paragraph 1 of the Italian Constitution.Footnote ⁸ Six years passed – indicative of a general attitude of cautiousness – before the ItCC acknowledged the supra-legislative rank of the ECHR in its changes to Article 117.1 It. Const. Two landmark judgements, nos 348 and 349 of 2007, definitively changed the status of the ECHR, affirming its ‘intermediate’ ranking (as a norma interposta) between law and the Constitution, making a law in breach of the ECHR indirectly incompatible with Article 117.1 It. Const., thus requiring it to be quashed.Footnote ⁹ Hence, as of 2007, the ECHR enjoys a hierarchical status superior to that of ordinary law. In the same seminal judgements of 2007, the ItCC identified the protocol for resolving the incompatibility between the domestic rule and the ECHR, as follows. Ordinary courts must interpret domestic legislation following the interpretation given by the Strasbourg Court. If the conflict between domestic law and the ECHR cannot be settled through interpretation, that conflict must be brought before the ItCC as a constitutional conflict since the violation of the ECHR and its interpretation leads to an indirect violation of Article 117.1 It. Const.

Since 2007, the ItCC has relied heavily on Strasbourg case law, recognising the ECtHR’s prominent role as interpreter of the ECHR. Already in 2007, however, as we will say about the criterion of the ‘greatest expansion of guarantees’ in Section 11, the ItCC had ruled out the automatic and inflexible application of Strasbourg interpretation, reserving for itself the search for a balance with constitutional rights and interests. In subsequent decisions, indeed, the principles displayed in the ‘twin’ judgements have been reshaped somewhat. The ItCC started using interpretative tools to justify a margin of discretion when applying the ECHR and Strasbourg interpretation, both in cases directly involving Italy and where conventional principles have been derived from decisions concerning other countries. The ItCC sometimes refers to the ECtHR’s margin of appreciation doctrine whereby national authorities enjoy some discretion in fulfilling their obligations under the ECHR. On other occasions, potential conflicts between constitutional and conventional interpretation are resolved by distinguishing.Footnote ¹⁰

The current trend in the ItCC’s adherence to Strasbourg case law has been summarised with the adage: ‘A Falling Tree Makes More Noise Than a Growing Forest’.Footnote ¹¹ There have been very few episodes of non-compliance identified by the ItCC itself.Footnote ¹² These have indicated a conscious distancing from the general trend of broad quantitative and qualitative adhesion.Footnote ¹³ A recent example can be found in the field of administrative sanctions of a substantially criminal nature under Article 7 ECHR and the so-called Engels criteria set out by the ECtHR. The ItCC is gradually but determinedly shifting towards the more protective principles of criminal law.Footnote ¹⁴ Essentially, the ItCC has shown compliance with the ECHR and its interpretation, at the same time seeking ways to reserve a margin of discretion for itself. We will return to this trend below when addressing the doctrine of the ‘greatest extension of guarantees’.Footnote ¹⁵

4. The current orientation of the ItCC regarding the CFREU

For 35 years, the ItCC had always affirmed that priority must be accorded to EU law with direct effect in conflict with national law, and that the conflict must be solved by ordinary courts by not applying the domestic norm. The lead here was the case Granital no 170 of 1984, in which, in line with CJEU Simmenthal case of 1978, the immediate application of EU law with direct effect and its prevalence over conflicting domestic law was assured.Footnote ¹⁶ Moreover, the ItCC refused for many years to make preliminary rulings to the CJEU, self-excluding its qualification as a court or tribunal within the meaning of the EU Treaties. The result was that the ItCC remained outside the assessment of EU law incompatibility, leaving this assessment to be made only by the ordinary courts, with the support of the CJEU. Since then, under the Granital scheme, the ItCC only had jurisdiction on the conflict between a domestic norm and an EU norm without direct effect, such as the norm of a directive, and on the violation by EU law of the supreme constitutional principles of the Italian legal order, the so-called counter-limits, through the examination of the law of ratification and execution of the Treaties.

In 2009 the CFREU came into force and, thirty-five years after Granital, the quantity and quality of EU attributions had grown considerably. The ItCC aim has been to re-enter the circuit of the relationship between ordinary courts and the CJEU, especially in matters of fundamental rights. The Granital model changed in 2017. With the seminal judgement no 269 of 2017, the ItCC moved in a new direction. It now addresses questions of non-compliance of domestic legislation with the fundamental rights guaranteed under the Italian Constitution and, at the same time, with the CFREU in areas of EU intervention.Footnote ¹⁷ Today, the new course is as follows: when a domestic norm conflicts with constitutional and similar norms of the CFREU (possibly linked to EU secondary law), ordinary courts may raise a question of constitutionality before the ItCC under Articles 11 and 117.1 It. Const. Before or after constitutional adjudication, ordinary courts may make a preliminary reference to the CJEU on grounds similar or different from the constitutional ones. Moreover, even after the question as to constitutionality has been settled, ordinary courts may not apply a domestic rule contrary to EU law even though it has not been declared unconstitutional. This new orientation has led to a lively debate between scholars on the requirements and the grounds for the partial re-centralisation of EU non-conformity.Footnote ¹⁸ Some scholars have perceived this new path as a reduction of the well-established and fruitful relationship between the ordinary courts and the CJEU, explaining it as a re-appropriation of adjudication which serves to prioritise the Italian Constitution, indicating closedness. Others have described it in terms of openness, as a better form of coordination with the CJEU. We share the second position, and we will justify it in Section 5.

5. Assessing ItCC case law: language, procedures, legal reasoning, and the effects of judgements as key elements demonstrating openness

Since judgement no 269 of 2017, the ItCC justified the new EU fundamental rights incompatibility course with the aim of building constitutional traditions:

Certainly, the recognition of a constitutional tradition lies on the borderline between the Court’s affirmation of its distinctiveness and the construction of a common heritage. In this Section we suggest four elements drawn from case law that, in our opinion, map this new course in terms of openness. These elements are the language used by the ItCC, the procedures, the legal reasoning, and the effects of judgements. These will now be analysed in turn.

6. Hints from interlegality: the conscious and deliberate reference to the recognition norms of different systems

Some other elements of the ItCC case law may be read in terms of closedness, reappropriation, or exclusion. In fact, the procedural scheme of EU incompatibility set out in judgement no 269 of 2017 could be steered in a less EU-friendly fashion. In fact, in both the ItCC case law on the ECHR, and now in its new orientation on EU fundamental rights, the ItCC seems to prioritise domestic constitutional provisions, in terms of retaining the power to annul a law on purely national grounds and absorbing the other grounds for unconstitutionality, including those related to EU law. Moreover, if no preliminary reference is made, the CJEU would be prevented from making its own proportionality assessment. Is this a sign of hierarchical priority? The theory of interlegality provides us as with a lens for analysis and suggests some further considerations. In terms of interlegality, we should keep in mind that ‘each system is able to identify which rules are valid and applicable according to its own “recognition rules”, but these remain silent and inadequate to answer questions that arise between several systems and whose solution goes beyond each of them’. ^{Footnote 31} Here, the ItCC case law reveals an interesting feature. In the ItCC’s reasoning, there is continuous and voluntary oscillation between the norms of reference for the different systems of protection in both substantive and procedural terms. In substantive terms, because the ItCC reasoning sets out and discusses all the relevant supranational principles and their respective jurisprudence and compares them with the constitutional principles (as mentioned above). In procedural terms – and this is the point here – because reference is made to the principles that build the architecture of both the constitutional and EU legal order. At the constitutional level, the ItCC decisions refer to Article 11 and Article 117.1, as the norms that open up the domestic system to international and supranational law; to Article 101.2 It. Const., which holds that judges are subject only to the law, where the notion of law is also extended to conventional and EU lawFootnote ³² ; to Article 134 It. Const., as the source of the centrality of the judicial review of legislation with effects erga omnes.Footnote ³³ But at the same time, reference is made also to Article 19 TEU and Article 267 TFEU, on the role of the CJEU and preliminary references, as well as to Article 6 TEU and to Article 52.4 of the EU Charter on common constitutional traditions, together with the individual substantive norms of the ECHR and of the CFREU in question.Footnote ³⁴ Thus, the judicial basis for adjudication not only takes domestic provisions into account but also the requirements of the supranational sources. The same line of argument, the plurality of sources belonging to different legal systems, is emphasised by those authors who consider the new orientation of the ItCC as an expression of the meta-principle of loyal cooperation between the States and the Union deriving from Article 4.3 TEU and embedded in the national system in Article 11 It. Const.,Footnote ³⁵ considering both norms together.

Certainly, it could be argued that the mere formal reference to the EU Treaties’ rules could be only cosmetic. However, this reference is consequential, insofar as it is accompanied by a deliberate recourse to the preliminary reference. We now turn to this point. The theory of interlegality helps us to highlight it, again in terms of ‘formal coordination’.

7. The ItCC increasing use of preliminary reference to the CJEU

The partial re-centralisation of questions of non-compliance between domestic legislation and constitutional and EU rights follows a trend begun several years ago, when the ItCC overruled its previous voluntary exclusion from the preliminary ruling procedure, and from the mechanism of institutional relations with the CJEU. The ItCC initially referred a preliminary question in a proceeding on State and regional legislative competences (2008) and then in an incidental proceeding (2013). In January 2017 the ItCC referred to the CJEU the famous Taricco case, on VAT fraud and the statutory limitation of offences. In that case, instead of applying the counter-limits control, the ItCC preferred to seek interpretative assistance from the CJEU.Footnote ³⁶ These judgements are the premises of the recent EU non compatibility re-centralisation (starting with no 269, in December 2017). Clearly, these dates – 2008, 2013, and 2017 – demonstrate that this development has been slow, subtle, and certainly not automatic. Instead, it is the result of choices that have been refined over time. On the other hand, this slow development is not isolated but reflects a general trend beyond Italian borders. In the last decade, many national Supreme or Constitutional Courts have decided to make preliminary references to the CJEU. ^{Footnote 37} In this way, the number of occasions increased on which the interpretation of domestic constitutional rights sits alongside the interpretation of supranational rights.

After 2017, the ItCC made four preliminary rulings: no 117 of 10 May 2019, on the right to remain silent and to avoid self-incrimination in procedures for administrative sanctions of a criminal nature; no 182 of 30 July 2020, on the exclusion of third-country nationals from maternity allowances and childbirth allowances; more recently, no 216 and 217, both of 18 November 2021, on the European arrest warrant. The first, ord. no 216 of 2021, asks whether Article 1(13) of the Council Framework Decision 2002/584/JHA, in the light of Articles 3, 4 and 35 CFREU, should be interpreted as meaning that the surrender of a person suffering from a serious chronic and potentially irreversible disease may be suspended if it may expose that person to the risk of serious harm to health. The right to health is protected under Article 32 It. Const. and Article 35 CFREU. The second referral, ord. no 217 of 2021, concerns Article 4(6) Framework Decision, in the light of Article 1(3) of that decision and Article 7 CFREU, asking whether it precludes legislation, such as the Italian one, that absolutely and automatically prevent the executing judicial authorities from refusing to surrender third-country nationals staying or residing in Italian territory, irrespective of the links those individuals have with that territory, and asking what criteria should be used to establish that such links are significant.Footnote ³⁸

In sum, the ItCC made a total of seven preliminary rulings, four of which in the last three years. Beyond the quantitative data, three observations can be made.

The first observation concerns the areas of legislation involved. The recent preliminary rulings include vital areas of EU law: welfare benefits to third-country nationals, equal treatment, and the European arrest warrant. Precisely in this field, almost entirely harmonised, the CJEU has seemed to replace an initial attitude of closure with a more flexible approach that gives room for national authorities.Footnote ³⁹ Thus, the interaction between Constitutional Courts and CJEU seems important to raise common standards.

The second consideration deals with the coherence of outcomes. The CJEU judgements resulting from the preliminary references have been followed by the ItCC, that quashed the relevant domestic legislation. In detail, the CJEU Grand Chamber answered ItCC ord. no 117 of 2019 on the right to remain silent in D.B., 2 February 2021, following the approach of the ItCC and interpreting the secondary legislation in the light of Articles 47 and 48 CFREU. The question went back to the ItCC that, in line with the CJEU reasoning, quashed the relevant Italian legislation in judgement no 84 of 2021. The same mechanism occurred with ItCC ord. no 182 of 2020, concerning childbirth allowance and maternity allowances for third-country nationals. CJEU Grand Chamber O. D., 2 September 2021, found the domestic rule incompatible with the relevant EU law, and the subsequent ItCC no 54 of 2022 applied that judgement, quashing the referred Italian legislation.

Third – and maybe most relevant consideration – in recent times, the function of preliminary ruling changed. In the Taricco case, the choice to make a referral was the last chance to avoid enforcing the counter-limits, the ultimate boundaries of the constitutional system. The interaction between Courts therefore occurred on the verge of break down. On the contrary, in recent cases the preliminary reference is not reserved to extraordinary instances of alleged violation of the supreme principles. Preliminary references have become habitual, aiming at seeking interpretation for ‘ordinary’ constitutional rights and interests as they emerge from the cases. We will return to this point in Section 8, comparing the constitutional limitations to ECHR with constitutional limitations to EU law. The Section contains an interlude, on the extent to which ItCC attitude depends on the formal sources of the Italian Constitution and how much on the interpretation of the ItCC itself.

8. Openness as a feature of written norms

Some considerations should now be offered as to whether the ItCC attitude towards supranational rights depends directly on the characteristics of the Italian Constitution’s norms on international and EU law or whether this approach mainly depends on their interpretation by the ItCC itself. Here again interlegality helps us, as we mentioned, highlighting the fact that the internal norms of a legal order are not enough to emphasise the current close interrelation between systems. But this consideration (the structural inadequacy of the norms of reference in an individual system) does not give rise to a different solution: there is (still) no general international set of norms able to serve as a reference for all national systems. It has even been claimed that a general constitutional supranational order does not exist.Footnote ⁴⁰ So, from a normative perspective, it would not seem completely mistaken to start from a reflection on the constitutional norms of each system.

In this sense, Articles 10 and 11 It. Const. have been interpreted by scholars as the source and expression of a principle of ‘openness’ of the Italian Constitution across international and supranational legal orders.Footnote ⁴¹ This openness is not empty and neutral but is substantively addressed to the protection of individual human rights, as emphasised by reading Articles 10 and 11 in the light of Articles 2 and 3 It. Const. on inviolable rights and imperative duties, as well as the principle of equality in formal and substantial terms. A clear index of this substantive focus can be found in Article 11 itself, where limitations of sovereignty are conditioned by the purpose of ‘ensuring peace and justice among nations’. So, the first point is that the written Constitution contains the seeds for the due consideration of international and supranational norms. Thus, ‘openness’ does not depend exclusively on judicial interpretation; rather, it is rooted in the wording of the Constitution.

This is the result of the historical premises of the Italian Constitution of 1948 – the personal circumstances of life of many of those involved in framing the new document, exiled under Fascism; the concomitant negotiations of the Paris Treaty during the discussion phaseFootnote ⁴² – and subsequent implementation by parliament itself. It has been argued that the Constituent Assembly’s openness to the international order was geared to Italy’s active diplomatic participation in international relations as part of a new order of relations between States, much less conditioned by the awareness of orienting the Republic towards international instruments to protect human rights, which were only in the early stages at the time. But Italy’s adhesion to the ECHR in 1955 represented recognition and acceptance of a common heritage of traditions and political ideals, respect for freedoms, and the pre-eminence of law, thus giving meaning and direction to a constitutional opening on the international level and with regard to some of its basic choices. The fact that the Preamble to the ECHR referred to the Universal Declaration of Human Rights proclaimed by the General Assembly of the United Nations on 10 December 1948 led to the assertion that Italy accepted the supranational dimension of human rights, which had not been emphasised during the drafting of the Constitution debate. This implied voluntary acceptance of, rather than submission to, the constraints of the political clauses of the Peace Treaty.Footnote ⁴³

Conversely, other Constitutions undoubtedly have a more detailed and specific range of norms devoted to international human rights (for example the Spanish Constitution of 1978, Article 10.2, or Article 16.2 of the 1976 Portuguese Constitution)Footnote ⁴⁴ and/or the EU integration process. These and other Constitutions have been amended following the evolution of EU Treaties (the German and French Constitutions of 1949 and 1958 respectively). In Italy, however, the evolution of EU integration did not go hand in hand with constitutional revisions; indeed Article 11 remains unchanged since 1948.Footnote ⁴⁵ Consequently, compared with the more detailed provisions of other Constitutions, Articles 10 and 11, and the more recent Article 117.1 It. Const., allow a wider margin of interpretation. This margin will be discussed in Section 9, considering this time together the ItCC attitude towards ECHR and CFREU.

9. Openness arising from interpretation: Some common traits of the ItCC case law on ECHR and CFREU

As said, the Italian Constitutional provisions set out a principle of openness, at the same time leaving ample leeway to the interpreter. This Section is devoted to the use of this margin by the ItCC and gives us the chance for an integrated examination of both ECHR and CFREU status in the domestic order. The starting point is that, although the behaviour of the ItCC in many ways tends towards integration, the ItCC has always confirmed the principle of separation between the supranational and national legal orders (and this is one of the reasons for the theory of interlegality, disputing that a similar doctrine is still tenable, as well as the qualification of EU law as a factual source). Each pattern, ie separation or integration, has been thoroughly analysed and discussed by scholars, but here the point is that the contribution of the ItCC to defining the set of relations between domestic, international, and supranational norms has been extremely significant, as issues concerning the ECHR and EU law clearly indicate. Generally speaking, for both ECHR and EU law, the ItCC has acted by means of two different tools: a general resetting and a case-by-case adjudication. Periodically, the ItCC envisaged a general reset of the system–coordination mechanisms, addressed internally to national courts, lawyers, and applicants, and externally to the supranational Courts. This reset involved the source of law and the judicial forum for conflicts. Regarding the ECHR, it came about once and for all in 2007, as described above in Section 3, re-defining both the formal position of the sources and the fora of adjudication on grounds of conventionality. As for the CFREU, it was a gradual process, with a series of decisions being adopted since no 260 of 2017 and still ongoing, reformulating the conditions for making constitutional referrals. ^{Footnote 46} This evolution, in fact, represents only the last of different phases concerning the relation between domestic legislation and EU law. It is impressive that, over time, the ItCC had set out four different methods to resolve the antinomies between domestic and EU law and they all have operated under the unchanged Article 11 It. Const.. ^{Footnote 47} For this reason, it may be argued that Article 11 is not specifically linked to either of these methods. Then, following the periodic general reset as the first tool, the second tool is an instrument for daily implementation: the work of the ItCC involves a process of fine tuning, which depends on the individual case in question.

Another sign of the interpretative breadth enjoyed by the ItCC arises when examining the constitutional limits to ECHR and EU law. Although the ItCC kept the gateway of conventional norms into the domestic legal order (Article 117.1 It. Const.) separate and distinct from that of EU law and CFREU (both Article 11 and Article 117.1 It. Const.), the recent case law led, in our opinion, to a convergence between the ECHR and the CFREU.Footnote ⁴⁸ As things stand at present, the conventional norms, as ‘interposed provisions’ under Article 117.1 alone, formally encounter the limits of all constitutional provisions, while EU provisions, with Articles 11 and 117.1 It. Const., encounter the sole limit of the supreme principles of the legal system. But current constitutional case law challenges this sharp division, which is flawed on the one hand by excess, and on the other by defect. It is flawed by excess with respect to conventional provisions, since the trends in ItCC case law show that, in reality, the constitutional norms ‘breathe’ in the light of conventional provisions; they are understood to be porous and open to them, so the constitutional norms may be supplemented.Footnote ⁴⁹

As for EU law, with the new trend introduced by judgement no 269 of 2017, EU norms are coming into more frequent contact with constitutional provisions. This contact, as we said considering the ItCC preliminary rulings, does not only call into question the supreme principles, as in the previous Granital framework, but, indeed, all the constitutional norms. In this renewed context, therefore, counter-limits do not appear to represent the only case in which the ItCC is required to make a preliminary reference to the CJEU, as in the Taricco case. But the reference may be useful in terms of the interpretation or validity of EU law in cases relating to any constitutional principle. Even in cases where the hard core of the Constitution is not in question, EU norms are called upon to interact with constitutional norms, as the recent preliminary references demonstrate. ^{Footnote 50} Thus, looking at ItCC practice, a less defined and softer boundary is probably affirmed, in which the substance of constitutional rules is addressed one by one, together with both conventional and EU provisions.

These considerations help us here to demonstrate the flexibility the Constitution leaves to the ItCC. As we mentioned, there is certainly a substantive important link expressed in Article 11 It. Const., namely ‘peace and justice among Nations’. And indeed, the direction undertaken by the ItCC has meant that the normative fulness of other formal expressions of Article 11, such as the reciprocity clause, have been devalued.Footnote ⁵¹ Furthermore, certainly the ItCC, as the other Constitutional and Supreme Courts, plays as one of the actors in a much more complex and plural framework, with distinct institutional and political centres, and reacts to the development of the system as a whole. But we tried to demonstrate that, for its part, the ItCC plays its role in terms that attest to a concurrent responsibility towards different systems of protection. We may, therefore, speak of interlegality in the sense outlined above.

10. Integration between Charters and the higher level of protection

At the beginning of this article, we proposed to use the theory of interlegality as a counterbalance for analysing the ItCC attitude towards supranational rights, adopting a double perspective. First, the mechanisms and structures of coordination, to which the previous Sections were devoted; then, the substantive integration in search for the higher level of protection for the applicants. This second perspective is now examined. We read that:

In this way, the theory of interlegality seems to oscillate between a formal criterion relating to positive norms and a substantive criterion concerning the justice of the case. We will concentrate on this meaning here, confining our analysis to the extent to which interlegality may relate to the maximisation of individual protection. This consideration may give us the opportunity to concentrate on an – apparently – substantive criterion created by the ItCC, the so-called criterion of the ‘greatest extension of guarantees’.

In Italian constitutional scholarship, the criterion of maximum expansion of constitutional freedoms was part of an old and specific debate on explicit and implicit limits to constitutional rights and referred to the need for an extensive interpretation of constitutional norms concerning rights and liberties.Footnote ⁵³ Years later, but well before the CFREU came into force, the issue of the level of protection emerged in a different sphere – that of the relationship between domestic and European protection systems. Notably, there is no clear dividing line between the different systems for the protection of rights, be they constitutional, conventional, or EU. Discussion regarding the level of protection provides one of the possible answers to the question of which law should apply to a case that is relevant to each of the systems. The terms ‘higher level of protection’ or ‘more extensive level of protection’ were understood to mean the most favourable protection offered to a subjective situation, as concretely claimed by the person concerned.Footnote ⁵⁴ The level of protection may steer coordination between bills of rights, in terms of theory of sources, to select the applicable source and downgrade the potentially competing source, or in terms of theory of interpretation, so that the rule drawn from the applicable source assumes a meaning more favourable to the applicant thanks to interference from the rules provided by the other provisions.Footnote ⁵⁵ Without going into detail, this kind of substantive criterion, both as a criterion to select sources or to drive interpretation, has long been questioned, observing that quantitative criteria, which focus on measuring the minimum and maximum standards of protection, are structurally unsuited to resolving conflicts between rights, given their relational nature.Footnote ⁵⁶ We share this opinion. Nevertheless, for the purposes of this paper, it could be useful to analyse the level of protection as a technique of argumentation developed by the ItCC in its reasoning.Footnote ⁵⁷ The purpose is to ascertain whether the argumentative doctrine developed by the ItCC refers to the most extensive individual protection.

11. The ItCC criterion of the ‘greatest extension of guarantees’

In one of the twin seminal judgements of 2007 on ECHR, no 348 of 2007, despite explicitly referring to ECtHR interpretation, the ItCC had already affirmed that the ECtHR precedents were not strictly binding on constitutional adjudication, given the need for a ‘fair balance’ between respect for international obligations and the protection of constitutional rights and interests.Footnote ⁵⁸ In decision no 317 of 2009, again referring to the ECHR, the ItCC clarified the criterion of ‘the greatest expansion of fundamental rights’.Footnote ⁵⁹ The Court stated that:

The Constitution and the ECHR are therefore brought together to pursue the greatest expansion of fundamental rights common to both documents.

This criterion may imply that if a different level of protection exists between constitutional and conventional norms, prevalence will be given to the rule that protects the individual right at stake more extensively. But in the same decision (no 317 of 2009), the ItCC continued:

So, in this formula, the maximum expansion of guarantees does not relate to an individual right alone but measures protection in relation to other constitutional interests. Some considerations can be made. Firstly, it is a substantial criterion which looks at the sphere of interests involved and implies the constitutional substance of the conventional rules, superseding their formal qualification as supra-legislative but sub-constitutional rules, as we mentioned earlier. Secondly – and this is the point here – the criterion concerns the relationship between entire systems of rights and duties, the ECHR, and the Italian Constitution as a whole, rather than the relationship between individual rights. It is based precisely on an overall assessment of the system, namely the constitutional and conventional systems. Without doubt, the affirmation of this criterion was instrumental in defining a different role for the ItCC with respect to the Strasbourg Court and in reserving the task of interpreting the constitutional system, seen as an overarching whole, to the Constitutional Court. Thus, the very formula ‘maximisation of protection’ offered by the ItCC serves to guarantee the unity of the constitutional system of rights in the face of the particularised vision offered by Strasbourg, the judge of the case. But it also corresponds to a theory of the Constitution in itself, as a composite and systemic ensemble which precludes fragmented interpretations of individual provisions disconnected from their contextual relationship with other constitutional principles.Footnote ⁶¹ This reading avoids an individualistic and monistic view of individual rights in order to grasp their respective correlations, expanding a constitutional fabric that is based – alongside rights – on duties of political, economic, and social solidarity, which translate into constitutional interests pertaining to a collective dimension.

In conclusion, this criterion does not lead to an a priori maximisation of the individual position at stake and does not, in our view, therefore correspond to our initial definition of the ‘maximum level of protection’. It is rooted in interpretation rather than in a strict order of sources. It does not preclude the assimilation of conventional interpretations, where these offer greater protection, such as in cases of criminal administrative penalties. Nevertheless, it somehow reserves to ItCC the duty to carry out an autonomous balancing, safeguarding the constitutional system as a whole. By this way, it preserves the ability of the Constitution to contextualise individual cases within legal institutes and instruments expressing general constitutional interests.

12. Conclusions: a deferent and operational, but vigilant cooperation

This paper dealt with the direction followed by the ItCC vis-à-vis implementing ECHR and CFREU rights in the Italian domestic legal order, assessing the ItCC case law in terms of openness or closedness. In the first part, we analysed the ECHR’s status in the domestic legal order, and we focused on recent ItCC course on the incompatibility between national and EU law on fundamental rights. We argued that, in this case law, an attitude of openness seems to arise from a number of different elements: language, the idea of competing remedies, legal reasoning, and the effects of ItCC decisions. To confirm this impression, we made use of the theory of interlegality. Interlegality is not an official doctrine of the ItCC, nor do we claim that is the theoretical scheme that best fits the ItCC case law. But this theory is a useful lens, allowing certain aspects of ItCC case law to be highlighted, notably, the ItCC reference to the rules of recognition of both the domestic system and the EU Treaties, and the increasingly frequent use of the preliminary reference. We then discussed how far this ItCC trend depends on the wording of the written Constitution and/or the margin of interpretation open to the ItCC itself, emphasising the degree of flexibility permitted by constitutional principles.

The second part of this paper was devoted to the substantive integration between Charters in terms of the search for the greater protection of individual rights. We analysed the criterion of the ‘greatest expansion of guarantees’ created by the ItCC, showing that it is a criterion not aimed at the search for the higher individual protection but at the protection of the entire constitutional system.

These considerations could lead to some general conclusions. In the last decade, the Italian constitutional case law both on ECHR and CFREU demonstrates a clear tendency towards harmonisation and an attitude of cooperation towards the supranational Courts. In terms of interlegality, the ItCC expresses ‘loyalty towards the plurality of legal orders and strive to respect their rationales’. Nevertheless, at the same time the Italian Court has enucleated instruments, such as the criterion of the ‘greatest expansion of guarantees’, that enables room for an autonomous balancing. The conclusion is that the ItCC is aware of – and responds to – the different legal orders involved, while reaffirming its role as guarantor of the constitutional system as a whole. We could thus speak of a cooperation that is deferent and operational, but vigilant.Footnote ⁶² In sum, it is not so much a question of substantial justice seeking the greater protection of the position of the individual, a concept that is debatable in itself, as one of keeping alive formal, institutional mechanisms of cooperation. Following the words of a past President of the Italian Constitutional Court, attitude to compliance and participation seems to lie essentially in the construction and implementation of stable logical methods making frequent, open, transparent, and motivated the interaction between the Courts, even when the solutions differ. ^{Footnote 63}

13. Afterword: a stand for cooperation as a consequence of the rule of law crisis and now the war

A final consideration must be made referring to the most recent months. The ItCC took the occasion of a pending question to further confirm and strengthen its adhesion to a cardinal principle of EU law, the principle of primacy.Footnote ⁶⁴ The need to strongly reaffirm the compliance of the domestic legal order with this ‘architrave’ of the European Union may probably depend on an external factor, the rule of law crisis involving Poland and Hungary.Footnote ⁶⁵ A sign of this explanation can be seen in the ItCC Annual Activity Report 2021, which was issued after the rulings of the CJEU of 16 February 2022 and after the Russian Federation invaded Ukraine on 22 February 2022. Referring precisely to these circumstances, the President of the Court, Giuliano Amato, emphasised that ‘it is of particular importance that the mutual cooperation of the Courts belonging to the European Union is and remains strong’. He pointed out that the ItCC has always sought to avoid conflicts with the CJEU, leaving away the application of national counter-limits to promote convergent interpretations. The cooperation between Courts is defined ‘one of the fundamental joints on which the fabric of our Union rests’, with an invitation to other Constitutional and Supreme Courts:

The conclusions we have given in the previous Section do not change. But it is opportune to give notice of this strong standing for the common values on which the European Union is founded and of this call for cooperation, as the contribution that the Italian Constitutional Court considered to express, in its role, as a reaction to ongoing times.