I'm wondering the point of the research as well. I've a guess but there are board rules.
This whole roofie thing is mostly urban myth isn't it? It takes teams to kidnap people even in the movies. Even in the detective novels the PI never gets the ole Mickey Finn until he's out of the public eye.
Someone is going to spike the drink of a random woman at a bar, and figure the dosage and timing perfectly in order to get her away from her friends and past the bouncers while she can still walk. If you can do that in the first place you probably don't need to spike her drink.
There's this: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2750925/