No, I think that is correct Piffle. I am working on an idea like this at the moment.
That in many cases that do not pertain to sexual assault, that there is a presumtion of innocence - but when it comes to sexual assault there is actually a presumption in the jury (and population at large) that someone is lying.
This is then complicated by the fact that people them percieve a man being accused of rape as being a worse 'crime' than being raped itself - this is bound up in many inherent predjudices and myths about female sexuality and duplicity.
Female sexuality has been so misrepresented to both men and women to the point where people genuienly beleive women ask to be raped - nto verbally of cousre, but by their general demenour (acting too sexy or being cock tease i.e being attracticve but not putting it about - take you pick)
This confusion and plain ignorance of what rape is may just lead many into a confusion and as they just don;t know, they think the lesser of the two evils is to aquit the man.
Even women who have been sexually assaulted themseves may be less sympathestic to a woman who has the courage to go through the system, in a kind of 'I just got on with it, why can't you?' way.