Mass. Gen. Laws ch. 128A § 9A
For the purpose of enabling the commission to exercise and maintain a proper control over horse and dog racing conducted under the provisions of this chapter, the rules, regulations and conditions prescribed by the commission under section nine shall provide for the licensing and registering at reasonable and uniform fees, of agents, assumed names, colors, partnerships and minor agreements and shall provide for the licensing at reasonable and uniform fees of veterinarians, blacksmiths, owners, trainers, jockeys and stable employees at horse tracks and veterinarians, owners and trainers of dogs participating in such racing, and any other persons having access to horses and dogs and all pari-mutuel clerks and other persons with access to money wagered on races.
Such rules and regulations shall also provide for the fingerprinting of all licensees. Every person so licensed shall be required to display and wear a badge containing a photograph. Such rules and regulations may also provide for the suspension and revocation of licenses so granted and for the imposition on persons so licensed of reasonable forfeitures and penalties for the violation of any rule or regulation prescribed by the commission and for the use of the proceeds of such penalties and forfeitures.
The commission shall have access to criminal offender record information of applicants for any license granted pursuant to this chapter, including officers, directors and beneficial owners of ten per cent or more of the stock of a corporation applying for such a license, and for applicants for employment by the commission. Such access shall be exercised in accordance with sections one hundred and sixty-seven to one hundred and seventy-eight, inclusive, of chapter six.
Mass. Gen. Laws ch. 128A, § 128A:9A