Why is rear application not very effective?
From http://www.radarbusters.com/products...il-details.asp
Should I treat the rear of my vehicle?
If you know that LIDAR is used to target speeders, in your area, from the rear, then it would be advisable. However, we have found that vehicles are more easily targetable from the rear and do not benefit as much from treatment.
Is this because the LEO has the opportunity to get a close-up laser shot as the vehicle goes by? Or is there another reason?
Around here, a favourite LEO tactic is to sit on highway on-ramps and get people from behind, although I have no idea what kind of speed measuring devices they use... might not be laser.