Bill Cosby's Accuser Grilled in Her Second Day of Testimony in Sexual Assault Trial

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Bill Cosby's chief accuser remained calm on the witness stand Wednesday as his lawyer challenged her assertions that the comic drugged and sexually assaulted her.

Andrea Constand, entering her second day of testimony in the highly publicized Pennsylvania trial, was grilled about inconsistencies in her account of what happened at the comedian's home outside the city in 2004.

Read: Bill Cosby Arrives for First Day of Sexual Assault Trial With Actress Who Played Rudy on His Hit Show

Defense attorney Angela Agrusa asked why Constand had first told police the attack happened in March, but later said it was January.

Agrusa also questioned why Constand had not told Canadian police, to whom she originally complained, that she previously had one-on-one meetings with Cosby.

“I was never asked,” the witness responded. Appearing unrattled, Constand attributed her recollection mistakes to human error.

Constand, a Temple University staff member at the time, was portrayed by Cosby’s attorney as a willing participant in a relationship with the comedian, even though she knew he was married.

Read: Bill Cosby's Wife MIA in Second Day of His Sexual Assault Trial; Star Witness Takes Stand

The witness said she did not know at first that Cosby wanted a romantic relationship. When she later began to think that he did, she testified that she didn’t feel threatened because he was a respected Temple trustee and an older man.

That changed on the night she had dinner at his house, where he gave her three “herbal” pills to help her relax, she said.

After she began seeing double, she testified Tuesday, Cosby helped her to a couch and she lost consciousness. When she came to, Cosby was fondling her genitals, she said.

Watch: Bill Cosby Accuser Andrea Constand Takes the Stand in Sexual Assault Trial