(a) Any person who willfully does an act which by section 70a, 70c, 70d, 70g, or 70h(b) of this title is declared to be unlawful shall be guilty of a misdemeanor and upon conviction shall be fined not more than $5,000 or be imprisoned not more than one year, or both, in the discretion of the court: Provided, That nothing in this section shall limit any other provision of this subchapter.

(b) Whenever the Commission has reason to believe that any person is guilty of a misdemeanor under this section, it may certify all pertinent facts to the Attorney General. If, on the basis of the facts certified, the Attorney General concurs in such belief, it shall be his duty to cause appropriate proceedings to be brought for the enforcement of the provisions of this section against such person.