They also took pictures of his nude body in order to determine whether he has a groin injury consistent with that reported by the UTA student. She told police she had bitten her attacker.
I hope this is a euphomism for "She bit off a good chunk of 'it'". Although if she had, he'd probably have had to seek medical attention or bleed to death. Maybe she just got a chunk of his scrotum. Either way, good for her!