Anyone being groped to the point they are left with bruises definately has a complaint! Hopefully these "fans" will be identified and banned - or shunned - with any luck - jailed.

In crowds it is not impossible to have accidental contact that is construed as "groping" - and quite possibly even more likely to have intentional groping that is passed off as "accidental" (hey - I'm not saying it is right, but it *does* happen) but to leave bruises goes WAY beyond any sort of casual contact into assault.