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.
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
PO Box 42645
Olympia, WA 98504-2645