This goes back to a decision by the CPS to only take on cases that they were quite confident of winning for purely statistical reasons. ie because it is so hard to get a conviction (often down to the Jury not wanting to "blight" a man's life!!!) the data showed that they were too often unsucessful in getting convictions.
And, not saying this is an exceptable reason, the guidance that the police must see all text / SM communication between suspect and victim after that case where a man had a case against him withdrawn because text messages on the woman's phone showed she had not been honest. (There was an inteview with a woman on W@BovaryX
If we didn't have this stupid fixation on stats over reality, you would think that the CPS would go ahead with more cases and they could look at other issues like juries (wasn't there meant to be training for jurist who were going to be on a rape trial?), and too often the police not linking the rape suspect with existing convictions. eg in the case of the woman interviewed the man concerned had ony recently been released from prison for violence.
I thought this was one of the purposes of SARCs ie a place where evidence could be collected so that even if not every case went ahead if it became apparent that the same man was committing a number of assaults this could be used to bring one case.
Surely if in a period of time five or six women go to a SARC and the evidence collected shows it is the same perpetrator someone should take action.
I am sure underfunding plays a part, but all too often it just seems because it is complicated no one can be bothered because in the end it is primarily women who are the victims.
Although the worse are those where the police decide to "no crime" some one they know is the rapist.
Its strange with every thing else that happens on social media that women haven't set up some virtual space where you can warn others are some violent sexual predator.
BBC interview mentioned here www.bbc.co.uk/news/uk-53588705