It can't really be treated as "evidence". Maybe it's "probable cause" for looking into something -- but that's different in a couple of important ways:
* One needs real and credible evidence to carry through with depriving another person of any liberty or property.
* Probable cause never trumps or adds to evidence -- if you investigate and find nothing, that's it.
One of the most confusing and unfortunate memes of the past year is this "believe women" stuff, because it confuses strong suspicion with proof. If these cases show us anything, it's that there is plenty of real and credible evidence -- no need to go on intuition or suspicion.