1.1. Should Power-Conferring Laws be Reconstrued as Duty-Imposing Laws?

A defender of Austin might retort to Hart by contending that power-conferring laws are in fact duty-imposing laws. A defender so inclined would submit that, when something which appears to be a legal arrangement of some kind is deemed to be null or invalid because it does not comply with the legally specified conditions for the effecting of such an arrangement, the nullity or invalidity is a sanction administered in response to a contravention of a legal requirement. Hence, the defender would maintain, any law that specifies the procedures for forming a contract or some other legal arrangement is a duty-imposing law that carries the threat of a sanction for nonconformity.

Hart posited and cogently countered a rejoinder along these lines. He began by observing that a law which specifies the conditions for the exercise of a power is thereby supplying the normative structure of a certain practice rather than laying down some duties with sanctions to be imposed on people who engage in activities or endeavors which differ from that practice. He compellingly substantiated this first point with reference to legislative and game-playing contexts:

Persuasive though the examples from legislative and game-playing contexts are, Hart regrettably overstated this first point against the defenders of Austin. He should have acknowledged that nullity is sometimes functionally equivalent to a sanction that is designed to steer people away from certain modes of behavior. After all, there are undoubtedly some power-conferring laws that specify conditions in order to deter people from adopting certain courses of conduct. For example, when a law provides that an agreement will be invalid as a contract unless each party to it is above a specified age and is of sound mind, those two conditions specified as necessary for the exercise of a contract-forming power are doubtless prescribed partly in order to deter people from engaging in some exploitative modes of behavior; and the nullity resulting from noncompliance with those conditions is often functionally tantamount to a sanction. Hart could and should have granted as much, because all that he needed to maintain was that many power-exercising conditions—such as those that are operative in the legislative and game-playing contexts to which he referred—are markedly different from the conditions for the formation of contracts which I have broached here. Many power-exercising conditions are specified to supply the normative frameworks of various activities and enterprises, rather than to deter undesirable conduct.

At any rate, even more powerful is a second point advanced by Hart against the defenders of Austin. He noted that a duty-imposing mandate can intelligibly exist even if no sanctions are attached to it for noncompliance. Indeed, as I have discussed elsewhere, legal mandates that are utterly unenforceable rather than merely unenforced can nonetheless perform important conduct-directing functions.Footnote ¹² By contrast, a power-conferring law without any specification of necessary conditions for the exercise of the conferred power would be unintelligibly vacuous, and therefore a power-conferring law that involves no prospect of nullity for noncompliance with conditions prescribed by that law would be unintelligibly vacuous—since one’s noncompliance with necessary conditions for the exercise of a power entails the nullity of one’s attempt to exert the power in question. As Hart declared,

1.2. Another Reconstrual of Power-Conferring Laws as Duty-Imposing Laws

Neil MacCormick did not seek to uphold an Austinian command theory of law, nor did he rely at all on the thesis that nullity is tantamount to a sanction. Indeed, he robustly rejected that thesis.Footnote ¹⁴ Nevertheless, through a different route, he reconstrued power-conferring norms as duty-imposing norms. Having recounted and amplified Hart’s exposition of a moral norm that confers powers on people to bind themselves by satisfying the conditions for the making of promises, MacCormick asserted that that norm “belongs to Hart’s class of ‘obligation-imposing rules.’ It tells us what one ‘is bound’ to do.”Footnote ¹⁵ MacCormick added: “The obligation in question is, however, conditional. It is a condition of my coming under that [promissory] obligation to you that I have said the appropriate words in the appropriate circumstances, both of us being appropriate persons.”Footnote ¹⁶ Slightly later, MacCormick characterized the promissory power-conferring norm as “a fairly simple ‘obligation-imposing rule.’”Footnote ¹⁷ He reiterated that characterization several pages further on in his discussion, when he asserted that the promissory power-conferring norm is “an ‘obligation-imposing rule’; the ‘powers’ [are] conferred by the rule because of the conditions set for determining when a person is ‘bound’ in virtue of the rule.”Footnote ¹⁸ MacCormick averred that “the rule in question does not solely confer power nor solely impose obligation. It does both. By imposing an obligation which is conditional on the performance of a ‘rule-invoking’ act, it also confers a power.”Footnote ¹⁹

As might be inferred from the flurry of cautionary quotation marks in these extracts—including the threefold instances of such quotation marks on the phrase ‘obligation-imposing rules’ or ‘obligation-imposing rule’—MacCormick went astray in his conflation of power-conferring norms and duty-imposing norms. Contrary to what he presumed, the conditional obligation to which he referred is not an obligation at all. Rather, it is a Hohfeldian liability; specifically, it is a liability to incur an obligation. Let us recall that a legal or moral liability is a position of susceptibility to the effects of someone’s exercise of a legal or moral power. In other words, a liability and a power are correlative positions, as the existence of either of them with a certain content entails the existence of the other with that same content. Thus the moral power of Jane to impose a promissory obligation on herself entails, and is entailed by, her moral liability to incur such an obligation through her exercise of that moral power. Pace MacCormick, the conditional obligation to which he referred is a liability of this very kind. Hence, pace MacCormick, the promissory norm which he recounted is not an obligation-imposing norm. Instead, it is a norm which confers a power (one’s power to impose promissory obligations on oneself through a specified procedure) and which establishes a correlative liability (one’s liability to incur promissory obligations through one’s adoption of that specified procedure). It is, in short, a power-conferring norm—exactly as Hart contended.

Because the existence of any power with a certain content entails the existence of a liability with that same content and vice versa, every power-conferring norm is also a liability-establishing norm. A norm cannot confer a power without also establishing a liability. Utterly unsurprising, then, is that the promissory power-conferring norm expounded by Hart is also a norm that establishes liabilities. Despite MacCormick’s suggestions to the contrary, such a norm does not impose any obligations—though of course a successful exertion of the power conferred by it will impose a promissory obligation on the person who has performed that exertion.

A further reason for rejecting MacCormick’s conflation of power-conferring norms and duty-imposing norms is that not all powers are powers to impose obligations. There can also be powers to create liberties, powers, or immunities. A power to create a liberty is correlated not with a liability to incur an obligation but instead with a liability to acquire a liberty. Likewise, of course, a power to create a power is correlated with a liability to acquire a power, and a power to create an immunity is correlated with a liability to acquire an immunity. Hence, a norm that confers a power of any of these kinds will not be establishing a conditional obligation (that is, a liability to incur an obligation). For example, when a norm confers a power on a person to invest somebody else with a certain immunity through a specified procedure, the norm has thereby established a conditional immunity (that is, a liability to acquire an immunity). Consequently, even if we were to commit MacCormick’s error of perceiving conditional obligations as obligations, we should deny that all power-conferring norms are properly construable as obligation-imposing norms.

1.3. Should Power-Conferring Laws be Construed as Elements of Duty-Imposing Laws?

We have heretofore examined a couple of misconceived attempts to reduce power-conferring laws to duty-imposing laws. We should now ponder the following proposition, which I will designate as the ‘Subsumability Thesis’:

In The Concept of Law, Hart chiefly mulled over a version of this thesis that had been propounded by Hans Kelsen,Footnote ²⁰ whereas in some later essays he principally probed a milder version that had been developed by Bentham.Footnote ²¹

The Subsumability Thesis does not run afoul of the errors exposed hitherto. It depends neither on the classification of nullity as a sanction nor on MacCormick’s conflation of duties and conditional duties. Indeed, Hart did not object to the thesis on logical or formal grounds; instead, as we shall see, he objected to it on the ground that it obscures the distinctive functions or social roles of power-conferring laws.

Though Hart in The Concept of Law concentrated predominantly on the extreme version of the Subsumability Thesis which he associated with Kelsen, he did also recount there the moderate version developed by Bentham. According to the moderate version, duty-imposing mandates such as statutes that prohibit theft and arson are full-blown laws that are addressed to citizens, whereas ostensible power-conferring laws are not full-blown laws but are instead specifications of sufficient conditions for the applicability of certain duty-imposing laws. Proponents of the moderate version of the Subsumability Thesis thus understand power-conferring legal norms as parts or fragments of veritable laws, which impose duties. Advocates of the extreme version of the Subsumability Thesis agree that power-conferring legal norms are mere parts or fragments of complete laws, but they submit that the sole complete laws are addressed not to citizens but to officials. Those laws direct officials to apply sanctions under certain conditions. Power-conferring legal norms are themselves some of the conditions that are cumulatively sufficient to trigger sanctions, and they specify further such conditions. Duty-imposing legal norms addressed to citizens are likewise some of those conditions, according to the partisans of the extreme version of the Subsumability Thesis.

Hart convincingly argued that the extreme form of the Subsumability Thesis inverts the paramount aspects and the subordinate aspects of law. Paramount among the functions of a system of legal governance, through the promulgation of authoritative standards, are the provision of guidance to citizens and the coordination of citizens’ doings and the preservation of public order and the establishment of the normative frameworks of sundry activities.Footnote ²² Crucial, but ancillary to those main functions, are mechanisms for the resolution of disputes and for the disciplining of malefactors. Hart again fruitfully analogized the norms of a legal system to the rules of a game such as baseball. He underscored the perversity of treating all such rules as instructions to umpires and scorers about the conditions under which they are to reach certain determinations and perform certain actions. Important though the rules addressed specifically to umpires and scorers are, most of the rules of a game such as baseball are addressed principally to participants. We would darken counsel if we were to construe all the rules as addressed primarily or exclusively to umpires and scorers, for we would be blinding ourselves to the ways in which the rules furnish guidance to players and enable them to interact with one another concertedly. As Hart declared,

Although the moderate version of the Subsumability Thesis does not contend that all legal norms are addressed chiefly or exclusively to officials, it too purchases uniformity at the price of distortion and obfuscation. Hart encouraged his readers to contemplate power-conferring laws “from the point of view of those who exercise [the conferred powers].”Footnote ²⁴ When we attend to that internal point of view, we can grasp that the laws which bestow powers on private individuals are “an additional element introduced by the law into social life over and above that of coercive control.”Footnote ²⁵ Hart elaborated:

Hart drove home his point with a rhetorical question: “Why should rules which are used in this special way, and confer this huge and distinctive amenity, not be recognized as distinct from rules which impose duties, the incidence of which is indeed in part determined by the exercise of such powers?”Footnote ²⁷ (Note that Hart did not claim, and did not need to claim, that private powers are abundantly present in every legal system or even in every central instance of a legal system. In some rudimentary legal systems and in Communist legal systems, the presence of private powers is quite exiguous. Hart would readily have granted as much while maintaining that the Subsumability Thesis obscures the distinctiveness of the laws which confer private powers even in such systems—and while maintaining that the Subsumability Thesis is egregiously distortive in its obscuring of the distinctiveness of the laws which confer private powers in the many legal systems where those powers abound.)

Norms that confer public powers of law-ascertainment and legislation and adjudication and administration on officials are likewise misrepresented when they are treated as mere fragments of duty-imposing norms. As I have recounted elsewhere, Hart discerned that such power-conferring norms are pivotal to the very existence and operativeness of any legal system.Footnote ²⁸ He therefore wrote: “To represent such rules as mere aspects or fragments of the rules of duty is, even more than in the private sphere, to obscure the distinctive characteristics of law and of the activities possible within its framework.”Footnote ²⁹ Here as elsewhere, Hart objected to the Subsumability Thesis not on logical or formal grounds but on the ground that any such understanding of power-conferring laws badly fails to capture the import of those laws in the structuring of social institutions and intercourse.

2.1. The Internal Point of View

In the penultimate paragraph of §1.3, I have referred to the internal point of view of power-holders. Hart invoked that internal viewpoint in his riposte to the moderate version of the Subsumability Thesis. Quite striking, then, is the fact that he never presented an account of the internal viewpoint of power-holders. His exposition of the internal point of view—one of his most important contributions to the philosophy of law—was focused squarely on duty-imposing norms and not on power-conferring norms (nor on immunity-conferring norms). With that exposition he purported to be recounting the perspective of anyone who accepts social norms, but in fact he was recounting only the perspective of anyone who accepts social duty-imposing norms.

In the fourth chapter of The Concept of Law, Hart delineated the critical reflective attitude that is the hallmark of the internal point of view.Footnote ³⁰ Through that delineation, he was illuminating two distinctions that vitally informed his critique of Austin and his own alternative theory of law: the distinction between norm-guided behavior and merely habitual behavior, and the distinction between the characteristic perspective of a participant in a practice and the characteristic perspective of an observer of a practice. Comprised by each of those distinctions is the internal viewpoint, which involves the acceptance of some norm or practice or institution by a participant.

Though the critical reflective attitude is an affect, it manifests itself as a trio of behavioral dispositions. (An affect of a person is obviously internal to that person’s psyche, but the adjective ‘internal’ in the phrase ‘internal point of view’ does not denote interiority in that sense. It instead indicates that certain norm-upholding patterns of behavior are internal to institutions or practices or activities in that those behavioral patterns are characteristically exhibited by the participants in institutions or practices or activities.) If Jane evinces the critical reflective attitude in relation to some norm N, she is generally disposed to comply with N’s requirements insofar as they are applicable to her conduct, and she is also generally disposed to criticize any contraventions of those requirements by other people, and she is likewise generally disposed to acknowledge the appropriateness of censure directed against her on any occasions when she herself has—perhaps unwittingly—contravened N. These dispositions can be underlain by various motivations, as Hart persistently emphasized.Footnote ³¹

Now, in the present context, what is disconcerting about Hart’s otherwise insightful analysis of the internal point of view is that the analysis applies only to duty-imposing norms and not to power-conferring norms.Footnote ³² Throughout his discussion of social norms and the internal point of view, Hart was envisaging the categorical requirements established by duty-imposing norms. As he wrote, “where there is [a social norm,] deviations are generally regarded as lapses or faults open to criticism, and threatened deviations meet with pressure for conformity.”Footnote ³³ In other words, the social norms contemplated at this juncture by Hart were markedly different from the power-conferring norms which he envisioned when he contended that the role of many of those latter norms is to provide the structures or frameworks of sundry legal arrangements rather than to deter people from engaging in modes of conduct that are perceived as wrongful. He did of course advert elsewhere in The Concept of Law to power-conferring social norms such as uncodified rules of games that specify how goals or runs are to be scored, but he omitted to cover such norms in his exposition of the critical reflective attitude. Similarly, although he invoked the viewpoint of power-holders in his endeavors to highlight the functional differences between power-conferring laws and duty-imposing laws, he did not elucidate that viewpoint with an analysis comparable to his analysis of the critical reflective attitude that is displayed by anyone who accepts a duty-imposing norm.

This lacuna in Hart’s theory is significant not only because it aligns Hart malgré lui with the throng of other legal philosophers who have overlooked the roles of power-conferring norms in systems of law, but also because his account of the internal perspective that pertains to duty-imposing norms is not straightforwardly modifiable into an account of an internal perspective that pertains to power-conferring norms. Though there will be some clear parallels between the former account and any satisfactory account of the latter kind, there will also have to be some major dissimilarities between them. Let us, then, consider two pathways for an exposition of the internal perspective of a participant in relation to power-conferring norms. These pathways are not mutually exclusive, and will probably have to be combined in an appositely thorough approach to this matter.

First, we might hold that Jane has adopted the internal viewpoint of acceptance in relation to some power-conferring norm PN only if (1) she is generally disposed to recognize the effects produced by any acts of exercising the power(s) which PN has bestowed, and she is generally disposed to recognize the non-occurrence of such effects when any attempts to exercise the power(s) in question are unsuccessful; (2) she is generally disposed to criticize or correct other people who fail to recognize the occurrence or non-occurrence of the aforementioned effects; and 3) she is generally disposed to acknowledge the appropriateness of criticism directed at any failures of her own to recognize the occurrence or non-occurrence of those effects. These three elements are, patently, counterparts of the three elements in Hart’s explication of the critical reflective attitude. However, instead of being oriented primarily toward PN itself, each element is oriented primarily toward acts of exercising the powers that have been conferred by PN. Recognizing the effects of any acts of exercising those powers is both a cognitive matter and a behavioral matter. One recognizes the effects by apprehending them whenever one has any occasion to apprehend them, and by adjusting one’s conduct and decisions in response to them. Of course, the adjustments in one’s conduct and decisions might be utterly routine and unreflective in many contexts. Still, insofar as one fails to undertake those adjustments when one has any occasion to undertake them, one is pro tanto failing to adopt the internal viewpoint of acceptance in relation to PN—unless one promptly corrects one’s lapses either as a result of self-criticism or as a result of remonstrations from others.

Second, we might hold that Jane has adopted the internal viewpoint of acceptance in relation to PN only if (1a) she is generally disposed to exercise some power bestowed on her by PN, in contexts where her exercising of that power will plainly be beneficial and legitimate; (2a) she is generally disposed to criticize other people who have persistently omitted to exercise some power bestowed on each of them by PN, in contexts where the exercising of that power would plainly have been beneficial and legitimate; and (3a) she is generally disposed to acknowledge the appropriateness of objections directed against her own persistent failures to exercise the aforementioned power in contexts where her exercising of it would plainly have been beneficial and legitimate. Again, of course, each element in this triadic distillation is a counterpart of an element in Hart’s explication of the critical reflective attitude.

Somebody might worry that the foregoing two paragraphs have not expounded the internal point of view in relation to power-conferring norms, and that they have instead expounded the internal point of view in relation to certain duty-imposing norms. According to such a line of thought, the penultimate paragraph above has distilled the internal viewpoint of a person who accepts a norm that imposes a duty to recognize the effects of any acts of exercising some specified power, and the final paragraph above has distilled the internal viewpoint of a person who accepts a norm that imposes a duty to exercise some specified power in contexts where doing so will plainly be beneficial and legitimate. Readers inclined to raise this worry will thus presume that I have not managed to provide an account of an internal perspective that applies to power-conferring norms.

Two rejoinders to such a query are pertinent here. In the first place, even if we were to grant arguendo that each of my explications of the viewpoint internal to a power-conferring norm PN has specified the viewpoint internal to a certain duty-imposing norm, we should continue to maintain that those explications have together recounted the internal viewpoint of anyone who accepts PN. Given that the relevant duty-imposing norms pertain either to recognizing the effects of exercises of powers or to exercising those powers, the specifics of the critical reflective attitude in relation to each such norm will coincide with the specifics of the internal viewpoint in relation to PN. Someone who adopts the internal perspective that consists in accepting one of the relevant duty-imposing norms will pro tanto have adopted the internal perspective that consists in accepting PN.

Also militating against the worry outlined in the penultimate paragraph above is that my explications of the internal viewpoint of someone who accepts PN are more capacious than the worry implies. Each of those explications does recount a viewpoint internal to a certain duty-imposing norm, but each of them also ranges more widely. My first account covers any situation in which the criticism to which the account adverts is concerned not with a breach of duty but with an instance of intellectual obtuseness. Similarly, my second account covers any situation in which the criticism to which the account adverts is concerned not with a breach of duty but with an instance of imprudence. In other words, people can adopt the internal perspective of acceptance in relation to PN without presuming that they are under any duties to recognize the effects of exertions of the powers conferred by PN, and without presuming that they are under any duties to exercise any of those powers in contexts where the exercising of them would plainly be beneficial. Hence, my distillation of the internal perspective of somebody who accepts PN is not reducible (in either of its two versions) to a distillation of the internal perspective of somebody who accepts a certain duty-imposing norm.

Now, although I have just sought to rebut a query about my two expositions of the perspective that is internal to power-conferring norms, I have not propounded either of those expositions as a definitive formulation. Rather, each of them is meant to be suggestive and to stimulate further thinking about this matter. As I have already mused, the two expositions will probably have to be combined in any full treatment of this problem; each of them articulates a necessary tripartite condition, rather than a sufficient tripartite condition, for the existence of an internal point of view in relation to PN. Of key importance for my present purposes is simply the fact that Hart neglected power-conferring norms (and immunity-conferring norms) in his analysis of the internal point of view. Quite remarkable is such an oversight by a philosopher who did so much to draw the attention of his fellow philosophers to the import of power-conferring norms.

2.2. Self-Imposed Obligations

In the final chapter of The Concept of Law, Hart presented a largely commendable discussion of the limits on national sovereignty that are imposed by the constraints of international law. However, one brief portion of his discussion is disastrously confused—and the confusion stems from another instance of his neglect of power-conferring laws.Footnote ³⁴ Hart there set out to refute voluntarist theories of international law, which purport to “reconcile the (absolute) sovereignty of states with the existence of binding rules of international law, by treating all international obligations as self-imposed like the obligation which arises from a promise.”Footnote ³⁵ In this characterization of the voluntarist theories, Hart correctly declared that the explanandum of any such theory is the existence of obligations incumbent on states under international law. A proponent of the voluntarist approach maintains that any such obligations have been activated through the acceptance of them by each nation-state that is now under them. Having opened his discussion of voluntarism correctly in this manner, however, Hart stumbled into confusion by resolving to demonstrate the incoherence of “the argument designed to show that states, because of their sovereignty, can only be subject to or bound by rules which they have imposed upon themselves.”Footnote ³⁶ Notwithstanding that he had begun by correctly attributing to the voluntarists a thesis about self-imposed obligations, Hart here incorrectly attributed to them a thesis about self-imposed rules. His blunder on that point permeated his whole attempt to expose the incoherence of voluntarism, as he argued that “the [voluntarist] view that a state may impose obligations on itself by promise, agreement, or treaty is not, however, consistent with the theory that states are subject only to rules which they have thus imposed on themselves.”Footnote ³⁷ He elaborated:

Though Hart was correct in contending that any blanket denial of the possibility of acceptance-independent norms in the international arena would be incoherent if combined with the proposition that states can impose obligations on themselves, he was thereby attacking a straw man—because voluntarists deny not the possibility of acceptance-independent norms but instead the possibility of acceptance-independent obligations. Their denial of that latter possibility is consistent with an affirmation of the former possibility, since the norms applicable to states include power-conferring norms. Some of those power-conferring norms are acceptance-independent. Power-conferring norms are not in themselves obligatory; they do not sans plus impose any obligations on the states that are within their power-conferring sway. Hence, the acceptance-independence of some norms which confer powers in the international domain is consistent with the proposition that all obligations incumbent on states are self-imposed through acceptance.

When Hart wrote in the passage above that the norms under which a state imposes obligations on itself cannot derive their own obligatoriness from any self-imposed obligations to obey them, he was strangely failing to notice that those norms are power-conferring rather than duty-imposing. Like other power-conferring norms, they are not obligatory; and thus they do not need to derive obligatoriness from any source. Instead of imposing obligations on each state, they endow each state with powers to impose obligations on itself. What is so puzzling and dismaying is that I am here making points which Hart himself made mutatis mutandis in his own discussions of power-conferring norms in the third chapter of The Concept of Law. He there emphasized that power-conferring laws are not obligatory on anyone to whom they are addressed—“[s]uch laws do not impose duties or obligations”Footnote ³⁹ —and he rightly held that promissory norms which enable individuals to bind themselves through certain commitment-incurring procedures are paradigmatic instances of norms that confer powers.Footnote ⁴⁰ Given that those promissory norms which make possible the self-binding of individuals are the moral counterparts of the international-law norms which make possible the self-binding of states, the blindness of Hart to the power-conferring character of the latter norms is truly baffling.

2.3. Necessary and Sufficient Conditions

This paper will close by briefly mulling over Hart’s presentation of the two individually necessary and jointly sufficient conditions for the existence of any central instance of a legal system. Hart stated the two conditions as follows:

Hart submitted that the first of these two conditions is a specification of the minimum pattern of conduct that must be exhibited by citizens (including officials qua private individuals) if a central instance of a legal system is to exist. Such a system cannot function unless most citizens, in relation to most of the system’s duty-imposing laws, generally evince at least the first of the three behavioral dispositions that constitute the critical reflective attitude. That is, unless most citizens usually comply with most of the duty-imposing laws that are addressed to them by the institutions of legal governance which preside over their society, those institutions cannot endure. Hart readily granted and indeed emphasized that a system of governance will normally be much more robust if most citizens not merely obey most of its duty-imposing laws but also fully accept those laws by exhibiting toward them all three of the dispositions in the critical reflective attitude. He nevertheless believed that, if the mere obedience of most citizens to most of their society’s duty-imposing laws is combined with the second of the two conditions which he specified, it can be sufficient to secure the functionality of a central instance of a legal system.

By proclaiming that the role of citizens in sustaining the operations of a central instance of a legal system can consist in mere compliance with duty-imposing laws, Hart once again strangely neglected the import of power-conferring laws. Having striven in his critique of Austin to highlight the distinctiveness and significance of laws that confer private powers on citizens, Hart appeared to forget about those laws when specifying his necessary and sufficient conditions for a central instance of a legal system. Given the indispensability and far-reachingness of exertions of private powers in the arranging and transforming of the legal relationships of citizens, the wholesale failure by Hart to mention such powers at this juncture in his text is bewildering. Had he taken account of such powers in his specification of the conditions necessary and sufficient for the existence of a central instance of a legal system, he would have had to fill the lacuna that yawns most widely in his theory. In other words, he would have had to supply an exposition of the internal point of view in relation to power-conferring norms. With such an exposition, he could have filled the additional lacuna that has been exposed here; that is, he could have carved out an adequate place for exertions of private powers by citizens in his cogitations on what is essential for the functionality of a central instance of a legal system.

By failing to provide any analysis of the internal point of view in relation to power-conferring norms, Hart also detracted from the cogency of his effort to specify the crucial role of officials in the workings of a legal system. In the statement quoted above, he averred that a central instance of a legal system cannot function and endure as such unless its officials accept its Rule of Recognition and its norms of change and its norms of law-application as ‘common public standards of official behaviour.’ We know that, in Hart’s parlance, one’s acceptance of a duty-imposing norm consists in one’s adoption of the critical reflective attitude toward that norm. Now, given that the Rule of Recognition and the norms of law-application are duty-imposing as well as power-conferring, Hart’s reference to the acceptance of them by officials is readily intelligible. Because the duties imposed by the Rule of Recognition and the norms of law-application are indeed incumbent on adjudicative and administrative officials, we can understand quite clearly what Hart meant when he asserted that those officials “must regard these [norms] as common standards of official behaviour and appraise critically their own and each other’s deviations as lapses.”Footnote ⁴² However, both in this latest quotation and in the statement quoted at the outset of this subsection, Hart was adverting not only to the Rule of Recognition and to the norms of law-application but also to the norms of change. Though some norms of change (such as norms pertaining to the promulgation of administrative regulations) do impose duties on adjudicative or administrative officials, most do not. Most norms of change are only power-conferring. Moreover, even among the relatively few norms of change that impose duties, the duties are more often incumbent on legislators or on private citizens than on adjudicative and administrative officials. Hence, given that Hart omitted to elucidate the internal point of view in relation to power-conferring norms, he left thoroughly unclear what he meant when he referred to the acceptance of the norms of change by adjudicators and administrators. He needed something like the first of the two explications of the internal viewpoint for power-conferring norms which I have proposed in §2.1 of this paper, but he did not provide any such explication. Having rightly deplored Austin’s inattentiveness to power-conferring laws, Hart damagingly left some significant gaps in his own theory by not fully absorbing the lesson to be drawn from his excoriation of his great predecessor.