A terrifying case in the US recently was a woman who reported being raped by a police officer, it went to trial, medical examination showed injury to her cervix, this was explained/dismissed in court by the defence's argument of 'she must have done it herself, while showering.'
Sorry can't remember what city it was in but no doubt googleable, the officer was aquitted and there was massive outcry. I'm aghast that in a respected court, with massively qualified experts and judges to guide the jury, people can still seriously believe women habitually scrub their cervixes when we shower, that it's even physcially possible. Raped women who read about these cases...jesus, it's no wonder they feel despair.
A story I know personally: a close friend was sexually assaulted, she fought him off (got punched in the face for it, but got away). She reported it. I mentioned the attackers name to my ex; he knew him and knew women that refused to be in the same room as him. I told friend, she started asking about him through friends of friends, several stories came back about his previous attacks on other women. It also turned out he was a sex tourist who used to come back from Thailand with photos/stories with which to entertain any male who would listen - strong indications of underage sex.
My friend collected these stories and went to the police. They were very good, there was nothing they could do without reports being made by the women concerned, however they put everything on record. It can flag an offender up if his name ever comes up again, even in an 'unofficial' sense: the accused may not be a convicted sex attacker but the police will know he has form.
My friend went to court and one of the results she was most pleased about was that his overseas travel was restricted.
'I Never Called It Rape' by Robin Wishaw is a book particularly about acquaintance rape, bit dated (70s/80s I think) and it's personal testimony so is one huge trigger, but if anybody needs to know that this happens, that it's not just you and it most certainly is rape...it's a book about that.