Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 151, § 3

1. To investigate and ascertain the wages of persons employed in any occupation in the commonwealth;

2. To enter the place of business or employment of any employer of persons in any occupation, other than domestic service in the home of the employer, for the purpose of examining, inspecting and making a transcript of any and all books, registers, pay-rolls, and other records of any employer of persons that in any way appertain to or have a bearing upon the question of wages of any such persons and for the purpose of ascertaining whether the orders of the commissioner or the attorney general have been and are being complied with; and

3. To require from such employer full and correct statements in writing when the commissioner or the attorney general, or their authorized representatives, deem necessary, of the wages paid to all persons in his employ, such statements to be under oath or accompanied by a written declaration that they are made under the penalties of perjury.

4. To carry out the provisions of this chapter.