Matthew Guariglia

The push to build large police training facilities follows on a long history of armories as both symbols and manifestations of state power.

From the 1880s to the 1940s, New York City was transformed—and so too was the New York City Police Department.

Modern surveillance policing is rooted in approaches adopted a century ago.

One of the biggest challenges for the NYPD, especially in the years following the turn of the twentieth century, was policing the newcomer immigrants.

Without historical records, we lose key insights into how law enforcement works — and how it fails.

From food rationing to drafting soldiers, preparedness and all it involved included a full-scale reorganization of American society, including the NYPD.

Sanitation reformers confront a neighborhood seemingly immune to state intervention.