Neither sanctuary campuses nor sanctuary cities have standard legal definitions. Therefore, states, cities, and campuses should never provide private personal information and should minimize their collaboration with U.S. Immigration and Customs Enforcement when there is no imminent threat. Providing personal information for any student clearly violates OUR Fourth Amendment rights. The Fourth Amendment of the U.S. Constitution provides, "[t]he right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation. Only when probable cause, supported by Oath or affirmation is provided should the campus cooperate.