At least, when it comes to whether the police may enter a residence when executing it. In U.S. v. Gooch, case no. 06-30645 (9th Cir. Nov. 1, 2007), the defendant was convicted of being a felon in possession of a firearm. He was arrested when reaching for firearms during the execution of a warrant for the search of his residence. He claimed the search warrant was invalid because it was based on police officers’ observation of drug paraphernalia when they got out of their express van and entered the residence to execute an arrest warrant for Gooch’s roommate. Gooch contended that because the arrest warrant was only a misdemeanor bench…