Prosecutors can use Bill Cosby drugs and alcohol evidence in sex assault trial, judge rules

Damaging evidence given by Bill Cosby in an accuser's lawsuit, including admissions that he gave young women drugs and alcohol before sex, can be used at his sex assault trial, a judge has ruled.

The defence has insisted Cosby gave evidence only after being promised he would never be charged over his 2004 encounter with accuser Andrea Constand, but his lawyers at the time never had an immunity agreement or put anything in writing.