Md. Code, Alcoholic Beverages and Cannabis § 22–1904

(a) A holder of a license with an on–sale privilege shall:

(1) keep complete and accurate books of account of daily receipts and expenditures in the form that the Board requires; and

(2) procure vouchers or purchase slips for all alcoholic beverages, food, and other items bought for sale.

(b) An on–sale license holder shall:

(1) keep the records required under subsection (a) of this section at the location designated in the license or another location in the county; and

(2) on at least 5 days’ notice, make the records available for inspection by the Board or a designee of the Board.

(c) (1) If a report required by this section or an investigation by the Board, a Board officer, or any other person indicates that a holder of a license with an on–sale privilege is violating this title, the Board shall summon the license holder and conduct a hearing.

(2) If the charges at the hearing are sustained, the Board:

(i) shall impose a fine of not less than $250 and not more than $2,000; and

(ii) may suspend or revoke the license holder’s license immediately.