Theodore Roosevelt patrolling a beat when he was
Commissioner of the
NYPD in 1894. Roosevelt would walk along his officers' beats to ensure they were on duty. In this illustration, Roosevelt, alongside journalist
Jacob Riis, comes across a police officer
sleeping while on duty. Before the advent of
police radio, beats were organized by
watchmen and
constables in towns and cities to cover specific areas, usually shown on a map in the police station and given some sort of name or number. Officers would be assigned a beat by their sergeant and sometimes given a card indicating that the officer should be at a particular point at set times, usually 30 to 45 minutes apart. The points would usually be
telephone booths,
call boxes,
police boxes,
sentry boxes, or
public houses, where it would be possible to phone the officer should he be needed to respond to an incident. The officer would remain at the point for a set amount of time, typically five minutes, and then patrol the area, gradually making his way to the next point. Popkess and the Nottingham City Police would expand the reactive response model, including overlaying mobile patrol areas on top of several existing foot beats; allowing responding Mechanized Division officers to collect colleagues on foot and take them to incidents; "snatch-plans" to pot up police cars at key road junctions in the event of serious crimes; and the use of unmarked vehicles. Around the same period, police in other countries such as the
United States also began to reorganize their traditional beat systems to use advances in policing technology. ==Modern policing==