10 USC 613a - Nondisclosure of board proceedings

(a) Nondisclosure.— 
The proceedings of a selection board convened under section 611 this title may not be disclosed to any person not a member of the board.
(b) Prohibited Uses of Board Discussions, Deliberations, and Records.— 
The discussions and deliberations of a selection board described in subsection (a) and any written or documentary record of such discussions and deliberations
(1) are immune from legal process;
(2) may not be admitted as evidence; and
(3) may not be used for any purpose in any action, suit, or judicial or administrative proceeding without the consent of the Secretary of the military department concerned.