The patrol division provides emergency services to the community 24 hours a day, 7 days per week. The patrol division is staffed with a deputy chief, six sergeants, thirty nine patrol officers, and three community service officers. Several officers are assigned to specialty positions which include:
- Canine Officer
- Evidence Technician
- Field Training Officer
- Juvenile Officer
- Range Officer

- School Liaison Officers
- Traffic/Truck Enforcement
Responsibilities
Patrol officers primary functions include responding to non-emergency and emergency calls for service, enforcement of criminal and traffic laws, and preliminary investigations of criminal acts.
School Resource Officers
The Carpentersville Police Department provides law enforcement and police services to the District 300 schools while working closely with the students, school community, and administrators. Officers are assigned to Dundee-Crown High School and Carpentersville Middle School.