Rather cynically, a marijuana possession charge is probably a lot easier to stick than a rape charge. Caught the suspect with MJ in possession = open and shut c

Rather cynically, a marijuana possession charge is probably a lot easier to stick than a rape charge. Caught the suspect with MJ in possession = open and shut case, no expensive tests or investigation necessary, not much possibility of a defense. In the case of rape, proving beyond reasonable doubt that the suspect is the right person and that the sex really was non-consentual, if the suspect fights it, could be much tougher and more expensive. It isn't too hard to believe that the legal system would rather take the easier case than the more serious crime.