The Patrol Division is responsible for the majority of police services provided by the department. Thirteen sworn officers and four civilian police dispatchers assigned to the Patrol Division comprise the largest single division in the department. The Patrol Division consists of one Patrol Lieutenant (Division Commander), and four Patrol Squads. Each Squad has one sergeant, two patrolman and one civilian dispatcher. The members of the Patrol Division are responsible for the performance of all primary police tasks including preventive patrol, immediate response to emergency situations including disputes, domestic violence, motor vehicle accidents, and crimes in progress; crime detection, crime reporting, preliminary investigations, traffic enforcement, parking enforcement, making arrests and transporting prisoners to and from court and jail; provide testimony in court; and completing all reports as required. The patrol officer works under the direct supervision of the Patrol Sergeant.

The Patrol Division also responds to emergency medical calls within the Borough to assist the Bernardsville First Aid Squad as needed. All officers are trained in first aid, CPR and use of the cardiac defibrillator. Six officers are trained as certified Emergency Medical Technicians to enable the delivery of a higher standard of emergency medical care to the community. The EMT's operate a vehicle that is equiped with extra equipment to provide emergency medical care that might be needed.