Owen Jones has a piece on the Guardian's Comment is Free about the 'joint enterprise' prosecution of Dr Lisa McKenzie. She was charged after someone else, at a Class War housing protest she had helped organise, put a sticker on a window.
I think Jones' opposition to this is well-intentioned, but he does not get at some of the nuances I believe lie behind these types of police action. Part of the motivation behind prosecutions like this is to tie up important activists. To put them on the defensive, and to then divert other protesters away from what they are protesting about (in this case housing and gentrification) and into self-serving, lengthy 'defence' campaigns. This has been going on for decades - when I interviewed Anandi Ramumurthy about her research into the Asian Youth Movements (AYMs) she cited the defence campaign for the Bradford 12 as a factor in the decline of the AYMs generally.
If legal proceedings, trials and bail restrictions can be drawn out long enough, the entire protest can run dry, not through being bettered by reasoned argument or even brute force, but via legal shenanigans and the exhaustion that occurs when a small number of protesters go up against the weight of the state. It is a very British way of disrupting protest movements.
As a former member many years ago, I think Class War are correct that there is a major housing crisis, but wrong on the solutions (the first, and most obvious of which, is to control immigration) however the scale of the housing problem is getting so big, that police and Crown Prosecution Service tricks will not make this crisis go away. At least not yet.