The Hearing Examiner's final determination following the hearing shall contain the following:
The final determination shall include specific findings on each issue of fact and shall be based upon reliable, probative, and substantive evidence. Mere conclusory assertions or summaries of evidence shall not constitute a sufficient basis for findings of fact within the meaning of this section.
The final determination of the Hearing Examiner shall be based upon consideration of the entire record of the proceeding, and no evidence, information, or other knowledge, except that of which official notice is taken, shall be considered.
D.C. Mun. Regs. tit. 24, r. 24-1311