Commissioned Washington State Patrol troopers carry out the agency’s primary goal of providing a safe motoring environment for the public. They are responsible for enforcing traffic laws, investigating collisions, and assisting motorists on 17,524 miles of the state’s highways.

The Field Operation Bureau oversees eight geographic districts. Each district is faced with unique characteristics and challenges. The bureau is responsible for the safety of the motoring public on Interstate Highways and State Routes across Washington.

In 2016, FOB troopers:

  • Made more than 968,000 contacts
  • Answered more than 206,000 calls for service
  • Investigated more than 48,000 collisions
  • Arrested nearly 13,000 impaired drivers

In addition, field force personnel were responsible for the successful operations of the 2016 presidential campaign visits, ensuring the safety of citizens through multiple civil disturbances, natural disasters, and daily traffic congestion. 

If you are pulled over by a Washington State trooper, you can expect a professional and courteous interaction. The agency’s goal is to make everyone on the roadways feel safe. If you’ve never been stopped by a law enforcement officer before, please watch the video below to become familiar of the process.


The Washington State Patrol (WSP) provides statewide aerial enforcement, rapid response, airborne assessments of incidents, and transportation services in support of the Patrol’s public safety mission.

WSP Aviation currently manages seven aircraft:

  • 2 King Air’s
  • 3 Cessna 182’s
  • 2 Cessna 206’s equipped with Forward Looking Infrared (FLIR) cameras

Aerial services provide assistance to troopers, agency staff, and local jurisdictions by providing:

  • Statewide day and night aerial traffic enforcement
  • Traffic congestion management
  • Identification of locations where serious injury or fatality collisions are likely to occur
  • Vehicle pursuit management
  • Tactical advantage to ground-based troopers providing additional safety
  • Support for Emergency Preparedness/Homeland Security
  • All-hazards emergency service air operations
  • Other law enforcement missions including: Stolen vehicle recoveries, fraud tax and evasion, wildland fire management, natural disaster assistance, spill response, search and rescue, and much more

Speed Measuring Devices

The Washington State Patrol uses electronic and laser speed measuring devices (SMD) in its speed enforcement efforts.

The courts of the state of Washington require that speed measuring devices undergo a testing and certification program for accuracy in order for evidence from the devices to be admissible in court proceedings. The WSP maintains a testing and certification program that requires each speed measuring device used by the WSP to be tested and certified for accuracy at least once every two years.

You can search for testing and certification information for all speed measuring devices used by the WSP below.

Contact Info

Anthony Hillock
Electronic Services Division
Washington State Patrol
2822 Euclid Avenue
Wenatchee, WA 98801-5916
Phone: (509) 682-8185
Cell: (509) 264-8798
Fax: (509) 682-8170

Steve Rosario
Electronic Services Division
Washington State Patrol
2502 – 112th Street
Tacoma, WA 98445-5104
Phone: (360) 704-5485
Cell: (360) 701-0298

The Washington State Patrol has two experts (above) assigned as custodians of the records and are authorized to testify in court representing the WSP on all SMD related matters. Subpoenas must have both experts names on the request as part of the required information listed below:

• Experts names
• Defendant’s name
• Date of the violation
• Unit used – SMD number (Radar or Lidar)
• Notice of Infraction number (ticket number)

All subpoenas are to be sent to the following address:
Anthony Hillock and Steve Rosario
WSP – Electronic Services Division
321 Cleveland Ave SE, Suite A
Tumwater, WA 98501-3348