Maryland Code, Correctional Services § 11-507

(a) If an incarcerated individual violates the rules of discipline of a local correctional facility, the managing official, for each violation, may revoke some or all of the diminution credits awarded under § 11-503 (presentence good conduct) or § 11-504 (postsentence good conduct) of this subtitle for the month in which the violation occurs.

(b) In addition to the revocation authorized under subsection (a) of this section, if a violation is aggravated or the incarcerated individual commits frequent violations, the managing official may revoke some or all of the diminution credits awarded under § 11-503 (presentence good conduct) or § 11-504 (postsentence good conduct) of this subtitle.

(c) This section does not affect the diminution credits awarded under §§ 11-505 (industrial, agricultural, or administrative tasks) and 11-506 (special selected work projects) of this subtitle.

(d) A managing official may not revoke diminution credits awarded to an incarcerated individual unless the incarcerated individual is afforded due process of law before the revocation.