Speeding tickets: how often must a cop car's speedometer be calibrated

[MotF Bane]

This is how it will roll down in court:

You: "I have the following evidence that I wasnt speeding (proceed to show video evidence of yourself not speeding, failure of the cops radar gun, no calibration of the patrol cars speedometer, etc)"

Cop : "DEERRRRRPPPPP I poop my pants!"

Judge:" I agree with the cop, guilty."

This.

 

[LTC8K6]

Crown Victoria Severe Duty
Calibrated speedometer - police
Deviations from true road speeds are minimized by a calibrated
speedometer head which gives both miles-per-hour (0–140 mph) and
kilometer-per-hour (0–222 km/h) readings. The speedometer head
assembly accuracy is +-2 mph (+-3 km/h) over the entire range (at 70°F
[21°C]). The “certified calibration” applies to the head assembly only and
does not apply to the indicated speed of the system, which is affected by
variations in vehicle loading, tire inflation pressures, tire rolling radii and
driveline ratios.