Treaties — Extradition treaty — Hong Kong — United States of America Agreement for the Surrender of Fugitive Offenders, 1996 — Fugitive Offenders Ordinance — Fugitive Offenders (United States of America) Order — Ordinance applying between Hong Kong Special Administrative Region (“HKSAR”) and United States subject to terms of Agreement — Order incorporating Agreement as part of municipal law of HKSAR — Validity of Agreement — Whether justiciable in municipal courts of HKSAR — Relevance of foreign law — The law of the Hong Kong Special Administrative Region