Many gun owners are under the mistaken belief that a registered owner of NFA firearms, such as a suppressors, short-barreled rifles, or short-barreled shotguns, is subject to unwarranted searches of their residence by the Bureau of Alcohol, Tobacco, Firearms, and Explosives (ATF). The Fourth Amendment of the U.S. Constitution prohibiting unlawful search and seizure is alive and well and applies to owners of NFA firearms. The ATF or any other government agency must demonstrate probable cause supported by oath or affirmation and obtain a valid search warrant before they can demand access to the premises of an owner of NFA firearms unless a specific exception applies.