4 ms·They're not unique to NYPD. Cops in New Jersey have them too and I'm sure others.by hiatus 2y agoThey're not unique to NYPD. Cops in New Jersey have them too and I'm sure others._djo_ 2y agoThey're quite unique to the US. I've never heard of anything like this in European or other developed country police forces.sobkas 2y agoThe question is, does cops in civilized countries have them. Because them being a thing in USA is something to be expected.