D.C. Mun. Regs. tit. 22-B, § 1103
1103.1 Each hearing shall be open to the public.
1103.2 At each hearing, the hearing officer shall be present to hear the evidence.
1103.3 A person entitled to a hearing shall have the following rights:
1103.4 The Hearing Officer shall have the following powers:
1103.5 If any person refuses to respond to a subpoena, refuses to take the oath or affirmation as a witness, refuses to be examined, or refuses to obey any lawful order of the hearing officer, the hearing officer may apply to the proper court for an order requiring compliance.
1103.6 The hearing officer shall follow the general rules of evidence applicable to administrative hearings under the District of Columbia Administrative Procedure Act, D.C. Code, 2001 Ed. §§2-501 to 2-510.
1103.7 The hearing officer shall exclude incompetent, irrelevant, immaterial, or unduly repetitious evidence or testimony.
1103.8 The hearing officer shall maintain order and shall not permit undue abuse or harassment of witnesses.
1103.9 The hearing officer may exclude testimony under the rules of privilege recognized by decisions of the courts of the District of Columbia or as provided by law, including, but not limited, to the following:
(a) Communication between attorney and client;
(b) Communication between physician and patient;
(c) Records and files of any official or agency of government which, by statute or otherwise, are recognized as confidential; and
(d) Privileged matter enumerated in §501(c) of the Act, D.C. Code, 2001 Ed. §48-905.01.
1103.10 All testimony shall be taken under oath.
SOURCE: Final Rulemaking published at 33 DCR 1046, 1058 (February 21, 1986).