Maryland Code, Criminal Procedure § 2-502

(i) in connection with the issuance of a warrant; or

(ii) at a preliminary hearing.

(2)(i) Subject to subparagraph (ii) of this paragraph, results generated by facial recognition technology may not serve as the sole basis to establish probable cause or the positive identification of an individual in a criminal investigation or proceeding.

(ii) Probable cause or positive identification may be established using facial recognition technology only if the results are supported by additional, independently obtained evidence establishing probable cause or a positive identification.