Extradition — Conditions of — Different conditions to be met under municipal legislation according to whether request was for “accused” or “convicted” person — Status of person subject to a “jugement itératif défaut” imposed by French Court — Whether accused or convicted — Reference to Extradition Treaty in interpreting municipal statute — Allegation that extradition offended notions of substantial justice of forum — Trial of person in his absence — Whether open to court of forum to inquire into foreign procedure — Extradition Treaty between France and Great Britain, 1876 — The law of England.