If they'd wanted the data, they could have submitted an FOI and asked for it, but the journalists far preferred to just run "30 people a day arrested for hurty words" rather than "this is quite complicated but potentially problematic and we should dig into it"
Yes but anyone who posts something about "loads of innocent people arrested for just voicing their opinion (man)" is implicitly disingenuous. I say that because the first time I heard someone say this (a friend who lives in the UK no less) I thought "that doesn't seem right" and so did a few minutes of Google searching. And of course it isn't right. People have been arrested for being threatening a.holes which seems perfectly fine. For comparison here in the middle of the US we have a lady in town who liked to send death threats (via mail) to the town manager, based on his chosen policies for street crossings, or something. Well she was arrested and put in jail for a while. She said she really didn't mean it, it was all a joke. Still in jail.