My two cents worth. As it stands at the moment, Stewart has done nothing wrong - nothing's been proven. It's all a 17 year old girl who (possibly) might be doing this for the attention and to bring one of the best players in the game down. As already mentioned, it could well have been a slap on the arse or something similar. If that's all it is, while I don't condone it, let him play - minus a "few" dollars in his bank account.
For me, something doesn't add up. Originally, the girl/her parents/ whoever it was said that this alleged sexual assault happened in a stairwell. I read the paper today, and apparently it didn't happen there, it happened at a gate leading to a property. Something doesn't seem right.