By a Memorandum of Understanding dated February 16, 1960, between the Secretary of Labor and the Attorney General, criminal matters arising under 29 U.S.C. § 504 are investigated by the Federal Bureau of Investigation. The Memorandum permits different arrangements to be made by the Departments of Justice and Labor on a case-by-case basis. A similar Memorandum of Understanding of February 9, 1975, makes the same delegation with respect to criminal matters arising under 29 U.S.C. § 1111.
In regard to issues concerning the appropriateness of a grant of a certificate of exemption under 29 U.S.C. §§ 504 or 1111, investigation is conducted by Department of Labor investigators with the assistance of the Solicitor of Labor. Washington, D.C.