Maryland Code, Public Safety § 3-515

(a)(1) Except as provided in paragraph (2) of this subsection, each law enforcement agency shall post all of the official policies of the law enforcement agency, including public complaint procedures and collective bargaining agreements:

(2) A chief may prohibit the posting under this subsection of administrative or operational policies that if disclosed would jeopardize operations or create a risk to public or officer safety, including policies related to high-risk prisoner transport security measures, operational response to active shooters, or the use of confidential informants.

(1) a complaint of police officer misconduct; and

(2) a request to obtain records relating to an administrative or criminal investigation of misconduct by a police officer under the Public Information Act.