Speed gun jammerIn concept, the LiDAR speed guns utilized by the authorities to discover a moving car's speed could be obstructed by laser jamming gear - in spite of the fact that not lawfully. Laser jammers generates light and at a greater intensity than the sign of the authorities speed gun. The jammers are legal to possess - but many owners are fined, or charged with perverting the course of justice. Don't bother. Watch it. #2. Cell Phone blockerThis small gadget prevents those about you from getting or making telephone calls, by preventing cellular phones from accessing signals from local base stations. Oh, how we would really like to use 1 of them the next time we are on a train and somebody makes the decision to broadcast his dialog. Unfortunately, it's illegal in the UK to jam phone transmission. Nevertheless, the technology is utilized in prisons, which can be theoretically useless as offenders are not allowed to possess cellular phones... #3. iPhone Stun Gun CaseAn American innovation, this: a smartphone instance that turns your cell phone to a stun gun. Better called a Yellow Jacket , the personal attack system packs a 650k electrode that manufacturers claim is effective at stopping an aggressive adult man". It comes to guarantee that that the electrode does