Search and seizure
Search and seizure is an act that police and other law enforcement authorities are allowed to do. It is when they search a place for evidence of a crime. If they find that evidence, they may take it. They usually knock the door down with a search warrant. Warrants are a document stating that the government has permission to go into a building due to found evidence.
Fourth Amendment (Amendment IV) to the United States Constitution prohibits unreasonable searches and seizures and requires any search warrant to be judicially sanctioned and supported by probable cause.(Wikipedia)
"The Fourth Amendment of the U.S. Constitution provides that "[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, and particularly describing the place to be searched, and the persons or things to be seized." https://www.law.cornell.edu/wex/fourth_amendment