Late at night, a Brea squad car hides under the cover of darkness and zaps unsuspecting motorists with instant-on (K band) without warning. There are rises on both sides of the YL Bl/Ohio St intersection, so there’s virtually no advanced alert of his presence. It’s the textbook definition of an ambush. The roadway is wide with two lanes each direction. With virtually no cars traveling this stretch that late it’s easy to pick up pace over the grossly under-posted limit of 40. The cops know this and will lie in wait.