What was the first major technological breakthrough in early policing?

The first major technological breakthrough in early policing was the introduction of the telegraph in the mid-19th century. This innovation allowed for rapid communication between police stations and officers, significantly enhancing coordination and response times. The ability to share information quickly helped law enforcement agencies manage crime more effectively and respond to emergencies in real-time. This marked a pivotal shift in policing strategies and operations, laying the groundwork for modern law enforcement communication systems.