It goes over when entities can release information to police. One option states:
To respond to a request for PHI for purposes of identifying or locating a suspect, fugitive, material witness or missing person; but the covered entity must limit disclosures of PHI to name and address, date and place of birth, social security number, ABO blood type and rh factor, type of injury, date and time of treatment, date and time of death, and a description of distinguishing physical characteristics. Other information related to the individual’s DNA, dental records, body fluid or tissue typing, samples, or analysis cannot be disclosed under this provision, but may be disclosed in response to a court order, warrant, or written administrative request (45 CFR 164.512(f)(2)).