Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 22C, § 14

No person who has been convicted of a felony or any offense punishable under chapter 94C or has been convicted of a misdemeanor and has been confined to any jail or house of correction as punishment for said crime shall be appointed as an employee of the department, including but not limited to a uniformed member, clerk, assistant or expert; provided, however, that the colonel may certify for appointment a civilian employee who has been convicted of a misdemeanor if that appointment will contribute substantially to the work of the department.

Any member of the state police who directly or indirectly receives a reward, gift or gratuity on account of his official services shall be punished by a fine of not more than one hundred dollars or by imprisonment for not more than three months and shall also be discharged from office. Any such member who fails to faithfully perform his duties shall be immediately discharged from office.