Hallak's attorney, Elias Mouad, has been relying on what they're calling inconsistencies in the alleged victims' stories.
In one case, the mother of a victim testified she spoke with the doctor five minutes after arriving at the clinic. But Hallak testified his medical records show he was with another patient. He said on the stand there was no way he would have left to speak to someone else.
They also pointed out whether the detective who questioned the youngest girl did so following protocol. An expert youth interrogator, Allan Jaffe, said it was "almost as if the police officer is introducing his own reality into this interviewing situation by speculating as fact."
The prosecution is slated to cross examine Hallak when the trial resumes Friday.
Hallak is charged with 11 counts of criminal sexual conduct.