Maryland Code, State Personnel and Pensions § 8-308

(b)(1) In this subsection, “off-duty hours” means any hours:

(2) Except as otherwise provided in this subsection, a law enforcement employee of any unit of State government who is called to duty on the employee's scheduled off-duty day is entitled to be paid at the rate of one and one-half times the employee's regular hourly rate of pay for each hour worked on the off-duty day.

(3) Except as provided in paragraph (4) of this subsection, a law enforcement employee of the Department of State Police holding a noncommissioned rank or a law enforcement employee of the Department of Natural Resources holding a rank of sergeant or below, park ranger supervisor or below, or park services supervisor or below who is called to duty during the employee's off-duty hours is entitled to be paid at the rate of one and one-half times the employee's regular hourly rate of pay for the greater of:

(4) A law enforcement employee of the Department of State Police holding a noncommissioned rank or a law enforcement employee of the Department of Natural Resources holding a rank of sergeant or below who makes an appearance in court on official duty during the employee's off-duty hours is entitled to be paid at the rate of one and one-half times the employee's regular hourly rate of pay for the greater of:

(1) compensatory time of 1 day; and

(2) payment at the rate of one and one-half times the employee's regular hourly rate of pay for each hour worked on that day.