The Microsoft-Ireland Case: Do U.S. Warrants Work In Foreign Lands? - The Supreme Court is poised to make a critical ruling on the extraterritorial reach of U.S. warrants for digital material. At issue is whether the 1986 Stored Communications Act (SCA) applies extraterritorially and thereby allows U.S. law enforcement to access an individual user’s email stored overseas, disregarding the mutual legal assistance treaties (MLATs) the U.S. has with over 50 foreign governments.