While not exactly a radar jammer, I saw this Laser jammer at SEMA and was impressed. As I understand it, Radar is being phased out by Laser due to it's accuracy and ability to correctly target the desired vehichle in heavy traffic. As for legality, the above website has a page that states "There are no federal laws in the U.S.A. that prohibit the ownership and/or operation of laser jammers. However, some states have enacted their own laws that do prohibit the use of these devices. These states include: Nebraska, Minnesota, Utah, California, Oklahoma, Virginia, Colorado, Illinois and Washington DC."
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