I watched the C4 Dispatches documentary earlier, these are my thoughts:
Out of all of the allegations, there are two that stand out - one involves the alleged rape of a woman in Hollywood, the other involves another rape in LA.
With the first rape - there is a text message apparently confirmed to be from his phone (C4 would have checked the **** out of that before daring to say it) followed by a raging angry text from the alleged victim, followed by more apologies from Brand.
This to me is incriminating evidence, because it directly links the accused to the victim, and proves that there was some sort of incident that took place. I imagine they'd have enough to charge him with those texts, for that specific offence (I'd be amazed if they didn't)
The second rape in LA, a number of witnesses apparently heard the victim screaming and saw her run out, which is also significant evidence, but not as good as the text messages. Either way - I think they'd probably have enough to charge him, if they could get the witnesses to testify.
The rest of the stuff is a bit "meh" it's a huge amount of just general scummy but borderline legal horseplay. Stuff like him getting his **** out all of the time, and just being a general grim **** infront of women, he sounds like a pretty bleak individual, but I didn't really get much in the way of criminal wrongdoing from most of that.
But on the two allegations of rape, I think they have some decent evidence and I think he'll get arrested and questioned soon, possibly charged for one of them.