Sure, arresting people for quoting Churchill seems like a potential definition of "working". [1] There's no way that arresting people for a twitter post [2] could be abused. Nobody needs free speech for reposting rap lyrics. [3]
In the first case there about Paul Weston, the local Police Commisioner clarified the reasons for his arrest:
"It has been wrongly suggested that Mr Weston was arrested for reciting passages written by Winston Churchill. I understand he was not welcome outside the Winchester Guildhall, the Police were called and he was asked to move on. I also understand that he was not prepared to move on and was arrested for this reason."
The road to hell is paved with good intentions.
[1] https://thenewamerican.com/hate-speech-u-k-political-leader-...
[2] https://www.independent.co.uk/news/uk/arrests-offensive-face...
[3] https://www.bbc.com/news/uk-england-merseyside-43816921