D.C. Mun. Regs. tit. 31, r. 2102
Hearing examiners shall be employees of the Department, but no hearing examiner shall be subject to the supervision, direction, control, or influence of an official, employee, agent, or counsel of the Department, except for purposes of time and attendance.
No official, employee, agent, or counsel of the Department shall engage in ex parte communications with an employee of OHE, or attempt to supervise, direct, control, or influence a hearing examiner in connection with the merits or facts of any matter.
No official, employee, agent, or counsel of the Department shall assign to a hearing examiner any task or duty which is unrelated to adjudications or hearings, or which limits a hearing examiner's availability to adjudicate matters, except for time and attendance and other administrative matters applicable to all District employees.
Hearing examiners shall be required at all times to act in a manner that promotes public confidence in the integrity and impartiality of OHE.
D.C. Mun. Regs. tit. 31, r. 2102