osby's admission about his drugs intended for women came during his sworn deposition in Andrea Constand's 2005 civil suit. Constand said Cosby gave her medication that made her dizzy, and she later woke up to find her bra undone and her clothes in disarray.
There wasn't enough evidence, said Bruce Castor, who was the local district attorney at the time.Even Cosby's newly publicized civil deposition wouldn't be enough to prosecute, Castor told CNN's "New Day" on Wednesday.
"Under Pennsylvania law, the statements of a suspect are not admissible until ... you can independently prove that a crime was committed," Castor said.
"The basic problem always remained that we didn't have any forensics or anything to tell us what had happened because of the delay of a year between when the event occurred and when Andrea Constand came in to police." CNN