If you have been arrested - either booked into jail or cited - you are not entitled to receive a copy of the report from the police department. You will receive a copy from the courts or your defense attorney.
Reports involving minors - Any report involving a minor (17 years of age or younger) is not releasable to anyone without a court order. This includes the parents and/or reporting parties.
Any report consisting of medical information, including 72-hour mental health commitments (5150 reports), are not releasable without a court order to anyone, including the victim.