Right. But you know, there usually isn't physical evidence. Unless you mean evidence of sex, and then it comes down to hearsay again -- she says it was rape, he says it was consensual sex.

And most women choose not to go to the police about a rape when it happens, for really good reasons (coping with the psychological effect of rape is bad enough without then having to deal with going through the legal system, especially if you are connected to the rapist as most women are). Therefore the way the legal system operates, if a woman comes forward when she feels able and inclined to cope, she will find it almost impossible to see her rapist convicted.

Great system if you want to punish women.