Cops on FM.

[Colly0410]

In England till the late 1980's the cops would use around 100Mhz on the FM band for their 2 way radios, of course nearly all FM radios could pick them up. Spent many a bored night listening to their transmissions, most of the time you could only hear one side of the conversation as they were semi duplex, but some networks were simplex & you'd hear both sides. Of course it was illegal to listen, but millions did, lol...