In response to a complaint filed by a complainant or a class of complainants who failed to obtain relief under § 621, or upon its own initiative, the Department may do any of the following:
The Department shall provide notice to the applicant or licensee of its intended action and shall notify the applicant or licensee of the right to a hearing relating to Department action authorized by § 622.1.
All hearings conducted by the Department shall be conducted pursuant to chapter 1 of Title 17 of the D.C. Municipal Regulations (DCMR) and shall be consistent with the provision of the D.C. Administrative Procedure Act (D.C. Code, Title 1, chapter 15).
For purposes of hearings held pursuant to this section, the Department shall have the power to issue subpoenas in the name of the Chief Judge of the Superior Court of the District of Columbia to compel witnesses to appear and testify or to produce all books, records, papers or documents before the Department.
D.C. Mun. Regs. tit. 16, r. 16-622