Do police officers use codes on their walkie talkies? If not, why don't they just say 'I need backup at this location'? Or does this happen sometimes without being coded as such? -
![Walkie-talkies are back and they're perfect for festivals | London Evening Standard | Evening Standard Walkie-talkies are back and they're perfect for festivals | London Evening Standard | Evening Standard](https://static.standard.co.uk/s3fs-public/thumbnails/image/2019/07/18/10/walkie-talkie-love.jpg?width=968&auto=webp&quality=50&crop=968%3A645%2Csmart)
Walkie-talkies are back and they're perfect for festivals | London Evening Standard | Evening Standard
![The walkie-talkie vintage in the 80's Mike Wheeler (Finn Wolfhard) in Stranger Things S01E02 | Spotern The walkie-talkie vintage in the 80's Mike Wheeler (Finn Wolfhard) in Stranger Things S01E02 | Spotern](https://medias.spotern.com/spots/w640/92/92759-1533906353.jpg)