What foreign law was cited as a basis for this case?
SCOTUS in Presser v. Illinois: "... the states cannot, even laying the [second amendment] out of view, prohibit the people from keeping and bearing arms ..."
2nd Circuit, in Bach v Pataki: "Presser stands for the proposition that the right of the people to keep and bear arms, whatever else its nature, is a right only against the federal government, not against the states." cert. denied, 546 U.S. 1174 (2006) [SCOTUS declined the opportunity to correct]
Kind of like how Scalia, in Heller, said the Miller case supports the constitutionality of the 1934 NFA (for want of a factual finding (short barrel shotgun is useful for defense) the Miller case would have found the 1934 NFA to be unconstitutional)