In Illinois, the law does not specifically require that a police officer show the radar to the driver in order to prove the speed alleged, even if the driver requests to see it. Many drivers believe that this requirement exists and that the failure to do so is a reason to have the speeding ticket dismissed. Unfortunately, that is not the case.
Officer’s Choice to Show the Radar Gun
Occasionally, an officer will agree to show the driver the radar device in order to build trust with the driver, but the failure to do so is not a defense against a charge of speeding. Many police officers argue that allowing a driver to walk back to their squad vehicle to view the radar is a safety risk for both officers and drivers.