The police will know by how the laser reacts if you likely have a blinder/jammer activated. If the blinder is illegal in your City/State, they have probable cause to stop you and either gain your permission to search for the "contraband device" If you refuse, they have the power to impound your car until they can obtain a warrant to search for it. I believe our Canadian brothers had a thread on this board regarding this.
Here it is: http://pantera.infopop.cc/eve/...450042735#2450042735
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