; or (2) knowingly and willfully threaten, coerce, intimidate, deceive, or mislead a party, representative, witness, potential witness, judge, or anyone participating in a proceeding regarding any matter related to a proceeding under this title. (b) Fine; imprisonment Any person who engages in the conduct described in subsection (a) shall, upon conviction, be subject to a fine in accordance with title 18, United States Code, imprisoned for not more than 5 years, or both. (c) Prompt investigation The United States Attorney for the district in which the conduct described in subsection (a) is alleged to have occurred shall make every reasonable effort to promptly investigate each complaint of a violation of such subsection. (d) Disqualification (1) In general An attorney or expert witness who engages in the conduct described in subsection (a) shall, in addition to the fine or imprisonment provided under subsection (b), be permanently disqualified from representing any party, or appearing in any proceeding, under this title. (2) Attorney disqualification In addition to the disqualification described in paragraph (1), the Secretary may disqualify an attorney from representing any party in any administrative proceeding under this title for either a limited term or permanently, if the attorney— (A) engages in any action or behavior that is prejudicial to the fair and orderly conduct of such proceeding; or (B) is suspended or disbarred by any court of the United States, any State, or any territory, commonwealth, or possession of the United States with jurisdiction over the proceeding. (e) Discovery sanctions An administrative law judge may sanction a party who fails to comply with an order to compel discovery or disclosure, or to supplement earlier responses, in a proceeding under this title. These sanctions may include, as appropriate— (1) drawing an adverse inference against the noncomplying party on the facts relevant to the discovery or disclosure order