((a)) The Secretary of the military department concerned shall convene boards of inquiry at such times and places as the Secretary may prescribe to receive evidence and make findings and recommendations as to whether an officer who is required under to show cause for retention on active duty should be retained on active duty. Each board of inquiry shall be composed of not less than three officers having the qualifications prescribed by .

((b)) A board of inquiry shall give a fair and impartial hearing to each officer required under to show cause for retention on active duty.

((c))

((1)) If a board of inquiry determines that the officer has failed to establish that he should be retained on active duty, it shall recommend to the Secretary concerned that the officer not be retained on active duty.

((2)) Under regulations prescribed by the Secretary concerned, an officer as to whom a board of inquiry makes a recommendation under paragraph (1) that the officer not be retained on active duty may be required to take leave pending the completion of the officer’s case under this chapter. The officer may be required to begin such leave at any time following the officer’s receipt of the report of the board of inquiry, including the board’s recommendation for removal from active duty, and the expiration of any period allowed for submission by the officer of a rebuttal to that report. The leave may be continued until the date on which action by the Secretary concerned on the officer’s case is completed or may be terminated at any earlier time.

((d))

((1))

((A)) If a board of inquiry determines that an officer should be retained, the officer’s case is closed unless the board substantiated a basis for separation and, upon recommendation from the service chief, the Secretary of the military department determines that the board’s retention recommendation is clearly erroneous in light of the evidence considered by the board, a miscarriage of justice, and inconsistent with the best interest of the service. In such cases, the Secretary of the military department may separate the officer after providing a written justification of the decision to separate.

((B)) An officer considered for separation under this section must be notified and afforded the opportunity to present matters for the Secretary of the military department to consider when making the separation determination. The Secretary of the military department shall review the case to determine whether the retention recommendation of the board is clearly contrary to the substantial weight of the evidence in the record and whether the officer’s conduct discredits the Service, adversely affects good order and discipline, and adversely affects the officer’s performance of duty.

((C)) Exercise of authority to separate an officer under this section shall be reserved for unusual cases where such action is essential to the interests of justice, discipline, and proper administration of the service.

((2)) Authority to direct administrative separation after a board of inquiry’s recommendation to retain an officer may only be delegated to a civilian official within a military department appointed by the President, by and with the advice and consent of the Senate. The least favorable characterization in such cases will be general (under honorable conditions).

((3)) An officer who is required to show cause for retention on active duty under subsection (a) of and who is determined under paragraph (1) to have established that he should be retained on active duty may not again be required to show cause for retention on active duty under such subsection within the one-year period beginning on the date of that determination.

((4))

((A)) Subject to subparagraph (B), an officer who is required to show cause for retention on active duty under subsection (b) of and who is determined under paragraph (1) to have established that he should be retained on active duty may again be required to show cause for retention at any time.

((B)) An officer who has been required to show cause for retention on active duty under subsection (b) of and who is thereafter retained on active duty may not again be required to show cause for retention on active duty under such subsection solely because of conduct which was the subject of the previous proceedings, unless the findings or recommendations of the board of inquiry that considered his case are determined to have been obtained by fraud or collusion.