I’m more interested in whether these arrests were appropriate, the suspects convicted of a crime by a jury of their peers.
People are being matched against an existing watchlist so the people arrested are those the Police would arrest anyway if they found them.
Locking you up in a cage for days when you did nothing wrong, dragging you into court where you need to defend your life is pretty much almost the worst thing a modern western state can do to you.
So it's kind of relevant if they're doing that.
There are two types of cameras – the Flock type of which there are many more in the UK which record all the time and spot people committing a crime where the video is kept and these which do not retain video but are used in real time by police to see if there is anyone who they already have put on a list to be arrested.
There is a case of a flase positive - detained for 30 minutes