10 U.S.C.A. § 1034
§ 1034. Protected communications; prohibition of retaliatory personnel actions
(a) Restricting communications with Members of Congress and Inspector General prohibited.--(1) No person may restrict a member of the armed forces in communicating with a Member of Congress or an Inspector General.
(2) Paragraph (1) does not apply to a communication that is unlawful.
(b) Prohibition of retaliatory personnel actions.--(1) No person may take (or threaten to take) an unfavorable personnel action, or withhold (or threaten to withhold) a favorable personnel action, as a reprisal against a member of the armed forces for making or preparing--
(A) a communication to a Member of Congress or an Inspector General that (under subsection (a)) may not be restricted; or
(B) a communication that is described in subsection (c)(2) and that is made (or prepared to be made) to--
(i) a Member of Congress;
(ii) an Inspector General (as defined in subsection (i)) or any other Inspector General appointed under the Inspector General Act of 1978;
(iii) a member of a Department of Defense audit, inspection, investigation, or law enforcement organization;
(iv) any person or organization in the chain of command; or
(v) any other person or organization designated pursuant to regulations or other established administrative procedures for such communications.
(2) Any action prohibited by paragraph (1) (including the threat to take any action and the withholding or threat to withhold any favorable action) shall be considered for the purposes of this section to be a personnel action prohibited by this subsection.
(c) Inspector General investigation of allegations of prohibited personnel actions.--(1) If a member of the armed forces submits to an Inspector General an allegation that a personnel action prohibited by subsection (b) has been taken (or threatened) against the member with respect to a communication described in paragraph (2), the...