Uniform Code of Military Justice
Article 233. Concealment of a Serious Military Offense.
(a) A person subject to this Code is guilty under this Article when—
(i) the person has actual knowledge that a serious offense specified in subsection (b) has been committed;
(ii) the person knowingly takes an affirmative step to conceal the offense or material evidence of it from competent military authority; and
(iii) the person acts with intent to prevent or materially delay lawful investigation or accountability.
(b) This Article applies to murder, treason, espionage, sabotage, mutiny, kidnapping, sexual assault, robbery, arson, an offense causing serious bodily harm, or another offense expressly designated by controlling law.
(c) Mere silence does not constitute concealment unless another Article or controlling law imposes a specific duty to report.
(d) Conduct protected by attorney-client privilege or another controlling legal protection does not constitute an offense.
(e) A person guilty under this Article shall be punished as a court-martial may direct.