trapster never worked...radar detectors and lidars are ok but there are anti-radar and anti-laser detectors...its a never ending cycle, like who can make the best bullet to pierce through armor then the armor company makes better armor to be bullet resistant, right now the upper hand is suppose to be some new lidar out that is undetectable (for now)...the way i look at it, best protection you have is stop speeding its the only surefire way to prevent getting caught, everything else your still susceptible to penalties
