The recent decision of the Supreme Court of the United States in Factor v. Laubenheimer and Haggard has broken new ground with reference to the interpretation of the extradition treaties between the United States and Great Britain, and it seems to deserve special consideration as a contribution to the law of extradition. Factor's extradition was requested by Great Britain on a charge of receiving certain sums of money, aggregating £458,500, known to have been fraudulently obtained. On the complaint of a British consul, Factor was taken into custody in Illinois, and a United States Commissioner in Illinois issued a warrant for his commitment pending surrender. On a return to a writ of habeas corpus, the District Court for the Northern District of Illinois ordered his discharge from custody, but this order was reversed by the Circuit Court of Appeals. Both the District Court and the Circuit Court of Appeals seem to have regarded extradition as possible only if the offense charged was a crime both by the law of Great Britain and by the law of Illinois; the District Court held that receiving money known to have been fraudulently obtained was not a crime by the law of Illinois, but a majority of the Circuit Court of Appeals, relying chiefly on Kelly v. Griffin, took the contrary view. On certiorari, the Supreme Court held that the offense charged was an extraditable crime even if it is not punishable by the law of Illinois, the opinion being written by Justice Stone. Justice Butler was joined in a vigorous dissenting opinion by Justices Brandeis and Roberts.