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Enforcement · 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.

This web site allows courts, attorneys, and the general public to search for testing and certification information for all speed measuring devices used by the WSP.

To conduct a search, be sure to have the identification number (tag number) of the speed measuring device and click the following link:

SMD Expert Contact Information

Tony Hillock Steve Rosario
Anthony Hillock Steve Rosario
Electronic Services Division Electronic Services Division
Washington State Patrol Washington State Patrol
2822 Euclid Avenue 2502 - 112th Street
Wenatchee, WA 98801-5916 Tacoma, WA 98445-5104
Phone: (509) 682-8185 Phone: (360) 704-5485
Cell: (509) 264-8798 Cell: (360) 701-0298
Fax: (509) 682-8170  

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

For public disclosure requests, please see our Public Disclosure web page.

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SMD Quick Links

Search Speed Measuring Devices