In 2016 The Herndon Police Citizens' Support Team (HPCST) celebrates 40 years as a volunteer organization dedicated to providing aid, support, and assistance to the Herndon Police Department. The HPCST provides services which include:
- Vehicle Patrol
- Parking Enforcement
- Traffic Control
Membership in HPCST is limited to 20 volunteers and is open to any person who resides in the state of Virginia who agrees to comply fully with the HPCST and the Herndon Police Department's established regulations, policies and guidelines.