An arrest for DUI can be made by the Salt Lake Sheriff’s Office, the Salt Lake City Police Department, or the Utah Highway Patrol. In order to be arrested for DUI, the officer must allege that the person either operated a motor vehicle or was in actual physical control of a motor vehicle. The officer can make an arrest without obtaining a warrant if the officer has probable cause that the driver was incapable of safely operating a vehicle due to alcohol or drug intoxication.