Wait let me get this straight…"The District of Columbia Protective Services Division"....let's focus here PROTECTIVE SERVICES division..chose Pat...wow... if that doesn't speak to the efficacy of the product nothing does..they could have chosen a competitor...they could have gone straight to Quasar as some have mentioned in the past..but they didn't..why you ask? Because there's a clear advantage to going with Pats product...on a side note Owl John ----> inbox buddy