Mass. Gen. Laws ch. 10 § 72A
The commissioner of the alcoholic beverages control commission shall establish a gaming liquor enforcement unit whose responsibilities shall include enforcing, regulating and controlling the distribution of alcoholic beverages in a gaming establishment.
The gaming liquor enforcement unit shall work in conjunction and cooperation with the investigations and enforcement bureau within the Massachusetts gaming commission established in chapter 23K. The commissioner shall assign investigators and employees of the unit to the bureau, who shall report to the director of the bureau and to the commissioner; provided, however, that the Massachusetts gaming commission shall designate the number of investigators and employees necessary to staff the unit; and provided further, that the code of ethics established pursuant to subsection (m) of section 3 of chapter 23K shall apply to all investigators and employees of the unit. No investigator or employee of the unit, other than in the performance of official duties, shall place a wager in a gaming establishment licensed under chapter 23K. The commissioner shall establish a program to rotate investigators in and out of the unit. The alcoholic beverages control commission shall be reimbursed by the Massachusetts gaming commission for the costs of operating the unit; provided, however, that the Massachusetts gaming commission shall have final approval over the budget of the unit.
Mass. Gen. Laws ch. 10, § 72A