A warrant is a legal order signed by a judge authorizing the police to search a specific location and seize specific materials from that location at a specified time. The police must convince the judge, using sworn statements, that they have probable cause or a reasonable belief that a crime has taken place, in order to receive a warrant to search a particular area for evidence of that crime. The police will provide their own evidence for the warrant, and the suspect is not present when the warrant is issued. Once a warrant is obtained, the police can only search the location specified in the warrant, whether it is a home, a car, or a specific outside location. For example, if a warrant specifies that the police are searching the backyard of a home, they cannot legally also search the home or vehicle of the individual. In addition, they must only search for what is specified in the warrant.