![]() “This is nothing more than the state trying to generate revenue for something that’s not required,” Grinstead said. The test has a $30 setup fee and costs $10 per fork. Grinstead thinks the supposed loophole arose because the state is trying to raise money by requiring agencies to send in their forks for testing. Grinstead and DeLong said radar guns that do not pass the two-fork test are sent back to the manufacturer. In addition, such a rule provides greater assurances that the radar device is accurate because the result of each separate test serves to corroborate the results of the other,” court documents state.Īfter their meeting, DeLong demonstrated the principle, using two tuning forks. That scenario “would provide assurances that the radar device being field-tested was measuring accurately over a range of speeds rather than just at one point. If agencies used two different tuning forks to calibrate a radar gun, it would provide evidence that the gun is accurate, the court found. The gun is supposed to register a specific speed for a given fork. When officers calibrate radar gun, they strike a tuning fork and aim the radar gun at it. Also, the two forks should emit different frequencies. I certify that I tested this radar speed measuring device at the simulated speeds specified. The Walker case, however, suggests an alternate, legally viable solution: use two tuning forks instead of one. For example, in connection with the K-55 radar instrument, the state should adduce evidence as to the specific training and extent of experience of the police officer operating the radar, the calibration of the machine prior to stopping the defendant through the use of tuning forks, which should also be independently calibrated, and the. That’s where some people accused of speeding have found a way around their tickets, since some law enforcement agencies don’t submit their forks for state certification each year. In that case, the court found that using a single, uncertified tuning fork to calibrate a radar gun “provides a legally insufficient foundation to support a reading taken from a radar device,” according to court documents provided by the District Attorney’s office. What they found was a precedent-setting Colorado Supreme Court case that gave them guidance. The sheriff’s office submits its forks for certification to a private company called Midwest Radar.īut Grinstead and DeLong said they could find no state statute requiring such certification. ![]() ![]() The Craig Police Department’s forks have been certified by the state. In Calgary, the tuning-fork test is still done by every police officer before every speed monitoring shift, Stacey said.Television news reports have publicized cases in which speeding tickets were thrown out because the department that wrote them did not submit the tuning forks to the Colorado Department of Agriculture for certification. While most Canadian jurisdictions also continue to use tuning forks to ensure radar devices are properly calibrated, the Ontario Provincial Police dropped the test more than a decade ago, in part over doubts about its necessity. "I'm very comfortable knowing that the people that we're stopping for speeding are actually the people that are speeding, and the speeds are accurate," said traffic section Staff Sgt. ![]() Microwave Radar - Tested with Tuning Forks. Tested against vehicle with calibrated speedometer. Installed either as a fixed radar using Stalker’s dedicated vehicle or motorcycle mounts, or hand-held and stowed in a lockable motorcycle holster, the Stalker II has proven itself to be reliable, accurate, and durable, mile after mile. It also revealed that several have done away with the traditional tuning-fork method, where a piece of steel with two prongs is struck against a surface, resonating at a constant pitch that mimics the reflected pulse of a moving vehicle.īut the Calgary Police Service (CPS) still tests its radar with tuning forks - and officials stand by the method's accuracy. Established radar tested before use, - Self Test run before and after use. A traffic speed enforcement tool for both in-car or motorcycle use. Mudassir Rana holds the tuning forks used by CPS officers to calibrate their radar equipment at the start of each shift.
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