[JURIST] The US Supreme Court [official website] heard arguments Monday in Hudson v. Michigan [Duke Law case backgrounder; merit briefs] where it will decide whether police officers were justified in entering a plaintiff's home without knocking when they arrived with a warrant to search for drugs. Justices could use this case to make it easier for officers to execute search warrants. They could also rely on previous rulings which say police armed with warrants generally must knock and announce themselves, or risk violating the Fourth Amendment [GPO backgrounder] ban on unreasonable searches. AP has more.