After a group of suspected burglars were brought in, the investigators received a warrant to search a vehicle that was linked the suspects.

Only then are police officers allowed to go back and search a vehicle incident to a suspect's arrest.

He then drove to the prison's gate where he knew, out of experience, that the guard would not search his vehicle.

Officers searched the vehicle and found the empty tins before asking him to provide a breath test.

Since a warrant to search a vehicle would similarly allow any compartments and containers in the vehicle to be searched, therefore a warrantless search may be of the same scope.