A radar speed gun, also known as a radar gun, speed gun, or speed trap gun, is a device used to measure the speed of moving objects. It is commonly used by police to check the speed of moving vehicles while conducting traffic enforcement, and in professional sports to measure speeds such as those of baseball pitches, tennis serves, and cricket bowls.
Microdigicam Laser radar gun in use in Brazil
Handheld radar speed gun
A U.S. Army Military Police Corps officer using a radar gun at Tallil Air Base in Iraq
Disassembled radar speed gun. The copper cone is the microwave horn antenna. At the right end is the Gunn diode oscillator which generates the microwaves.
Traffic police are police officers, units, and agencies who enforce traffic laws and manage traffic. Traffic police include police who patrol highways, direct traffic, and address traffic infractions. They may be a separate agency from a main police agency, a unit or division within a police agency, or a type of assignment issued to officers; they can also be part of a transportation authority or highway authority.
A Royal Malaysia Police traffic officer directing traffic in Kuala Lumpur
Traffic police at an intersection in Nassau
A Seattle Police Department officer directing traffic in downtown Seattle, 1922. Some early intersections featured concrete islands for traffic lights and traffic officers.
A Nigeria Police Force officer directing traffic at a busy intersection
