Spring 3100 is a magazine published by the New York Police Department for current and retired members of the service.
At the time, Police Headquarters was located at 240 Centre Street between Grand and Broome, which was in the geographical area covered by the "Spring" telephone exchange.
It was also highly popular with other law enforcement agencies around the world for the invaluable material found within its pages.
In 1979, citing a severe manpower shortage, Police Commissioner Robert McGuire made the decision to cease publication.
[3][4] In 1988, at the direction of Police Commissioner Lee P. Brown, the magazine returned in a standard size format and has remained in publication since.