He is in private practice and, as part of that practice, he provides consultations to several local, state and federal agencies. Dr. Henry has evaluated approximately 150 attorneys and testified before the ARDC between 20 and 30 times. He qualified as an expert witness each time he testified. He has also been qualified as an expert witness in state and federal courts. Dr. Henry earns between 20 and 30 per cent of his income from the ARDC. (Tr. 106-20, 124, 187-88, 242; Adm. Ex. 6; Resp. Exs. 5, 5A, 5B).