Records about the death of Celeste Rivas Hernandez, a 15-year-old girl whose body was found in singer D4vd's car, have been barred from public release, officials said.
The Los Angeles County medical examiner's office said it received a court order imposing a security hold on the case, and that no details about Ms Rivas Hernandez's death can be released or posted on its website.
The police department said it requested the order to ensure officers "receive information from the Medical Examiner before the public".
Chief Medical Examiner Dr Odey Ukpo said the practice of security holds is "virtually unheard of in other counties" and "has not been proven to improve outcomes in the legal system".