Police Officer

Police officers are generally charged with the apprehension of criminals and the prevention and detection of crime, and the maintenance of public order.

Main

Radio

1928
1933
1936
1940

Megaphone

1934
1954
1961
1969

camera

1969
1970 - 1992
1980
1990

GPS

1964
2009

Telegraph

1924

Polygraph

1924

Computers

1960
1966
1990

Dispatch

1895
02/09/1968
02/16/1968

Tape Recorder

1887
1947
1948

Media

1950