[muawiyah]

Most of this stuff is fairly hypnotic. Presumably you could convince someone under the influence of just about anything.

I suppose some people think it's quite entertaining to drug others.

[CondorFlight]

From what I have read about date-rape drugs, if Crystal was under the influence of such, she would not have been able to remember anything--hence no descriptions of how she was raped (orally, etc.); and also she would have been unable to struggle (as was claimed); nor would she have known how many people raped her.