Dualist approach to integrating international law into domestic law. There is a clear separation between the international sphere of law and the domestic sphere of law. An international treaty cannot be enforced within domestic courts unless it is first transformed into domestic law by a process. International law tends to regulate the conduct of and between states. Domestic law tends to regulate the conduct and interactions of individuals within states. Crimes against humanity and war crimes act: act respecting genocide, crimes against humanity, and war crimes and to implement the rome statute of the international criminal. Capital cities communications inc. v. canadian radio-television commission. Us broadcasters argued that canadian commercials couldn"t be substituted into. American tv shows being broadcast by us networks in canada. Since canada didn"t implement the american act into domestic law, it is not enforceable. Canadian parliament wanted to enact 3 international treaties into domestic law.