womenwithaltitude, it is already pretty much forbidden, at least on paper, to introduce the victim's sexual history. it can only happen in very restricted circumstances .
For example let's say the defendant's story is that "she consented - in fact she initiated things by tying me up with shoelaces. Then she smacked my arse with a wet otter". It then comes to light that the victim had a predilection for that conduct, and there was no way the defendant could've known this. Obviously that lends weight to his story, and I can see why that information should be admissible. It's a very specific exclusion, and I gather it's rarely used.
However it's seems ridiculous that this should've been allowed in the CE trial. the fact the victim sometimes liked sex from behind, and sometimes expressed a wish for that sex to be more vigorous, seems utterly commonplace and mundane. I'm not a criminal lawyer but it seems to me that this should carry no probative value at all.
It looks and smells to me that CE's lawyers have used this route, via a spineless appeal court judge, to allow evidence of the victim's promiscuity in via the back door. This, for me, is where the fuck up, travesty and scandal lie. The original conviction was sound.
I can see how the jury in the second trial felt there was reasonable doubt as to what really happened, but that was because the whole thing had turned into a fucking circus by that point, with bribes and all sorts of shit flying around.