Highway patrol
A highway patrol or highway police is a police unit, detail, or law enforcement agency created primarily for the purpose of overseeing and enforcing traffic safety compliance on roads and highways within a jurisdiction. They are also referred to in many countries as traffic police, although in other countries this term is more commonly used to refer to foot officers on point duty who control traffic at junctions. In the United States, some state-level law enforcement agencies are called “state police” or “state patrol” rather than “highway patrol,” although these agencies often perform similar functions.
In India, highway patrol operates as a specialised unit of the state police, policing national and state highways and major roads. While highway traffic enforcement and patrol duties may also be performed by local police and local traffic police.