Anything can can be construed as an attempt to avoid legal traffic enforcement devices are generally considered illegal. They don't work anyway. A friend sells these plate covers and radar detectors and he sells 100 detectors for every so called radar plate. Plus, tell me how a car can hide behind a 6 by 12 inch piece of plastic? They can't. Don't waste your money. I have found driving right around the speed limit the best defense against speeding tickets.