(a) It is the duty and obligation of the Consumer Protection Unit, or its successor, of the Department of Justice to enforce the provisions of subchapters I through V of this chapter. A violation of any provision of subchapters I through V of this chapter by a landlord is within the scope of enforcement duties and powers of the Consumer Protection Unit, or its successor, of the Department of Justice.
(b) Whenever the Consumer Protection Unit, or its successor, of the Department of Justice has reasonable cause to believe that any landlord is engaged in a pattern or practice of violating or failing to comply with the terms of any provision of a rental agreement covered by this chapter, the Attorney General may commence a civil action in any court of competent jurisdiction and seek such relief as the Department of Justice deems necessary to enforce and to ensure the compliance with the terms of such agreement.