A police car is the description for a ground vehicle used by police, to assist with their duties in patrolling and responding to incidents. Typical uses of a police car include transportation for officers to reach the scene of an incident quickly, to transport criminal suspects, or to patrol an area, while providing a high visibility deterrent to crime. Some police cars are specially adapted for certain locations (e.g. work on busy roads) or for certain operations (e.g. to transport police dogs or bomb squads).