AC Yamada Assistant Chief - Marc Yamada

The Field Services Bureau (FSB) is responsible for providing specialized services in several essential service delivery functions necessary for safely and effectively executing both routine and complex field operations.


Executive Officer: Lieutenant John O'Brien 

Special Operations Division

Acting Captain Peter Davidov, Director
Main Number: 240-773-6500

The Special Operations Division has the following Sections.

  • Homeland Security Section
  • Operational Support Section
    • Emergency Services Unit (ESU)
    • Managed Search Operations Team (MSOT)
    • Special Events Response Team (SERT)
  • Tactical Support Section
    • K9 Unit
    • Special Weapons and Tactical Team (SWAT)

Traffic Division

Captain Brian Dillman, Director
Main Number: 240-773-6600

The Traffic Division focuses on enforcing traffic laws, investigating serious traffic collisions, and providing safety education for students and the general public.

  • Automated Traffic Enforcement Unit (ATEU)
  • School Safety Section
  • Special Traffic Operations Section
    • Alcohol Initiatives Unit (AIU)
    • Chemical Test for Alcohol Unit (CTAU)
    • Collision Reconstruction Unit (CRU)
    • Commercial Vehicle Unit
  • Central Traffic Section

Pedestrian Safety Pamphlet English Spanish

Security Services Division

Mr. Darrell White, Director

Main Number: 240-777-6166

The Security Services Division provides security staffing at various County facilities to prevent or mitigate disorder and disruption.