Debrief the activity. Private industry does not need a search warrant to search an employee's work locker. A search warrant must be issued by a judge. To get a search warrant, the police must convince the judge that probable cause exists. Search warrants must specifically state what is to be searched.
Search warrants are valid only for a specific period of time.
If a person is under legal arrest, the police don't need a search warrant to search the arrested person. Once put out at the curb, a person's garbage may be searched by the police without a warrant according to a recent U.S. Supreme Court decision. Automobiles may be searched without a warrant if the police have probable cause to believe that something illegal is in the auto. In an emergency situation, the police may break down a door without a search warrant. If an object is in plain view it may be seized without a search warrant.