A court-martial that decides an Article 120 charge, covering rape and sexual assault under the Uniform Code of Military Justice (UCMJ), is tried before a panel of members rather than a civilian jury. The members are service personnel selected to sit in judgment of the accused. The fairness of the verdict depends on those members being impartial. So a difficult question arises when a member harbored a bias that was never disclosed, whether because the member concealed it or because no one asked the right question. The military justice system has specific tools to address this, and the consequences can include a new trial.
How bias is supposed to surface
Before the members hear evidence, the parties conduct voir dire, the questioning that probes the members for partiality. Voir dire exists precisely to expose biases, both those a member admits and those that emerge from a member’s answers and circumstances. Counsel may then challenge members. Each side has challenges for cause, which are unlimited in number, and a limited peremptory challenge.
Rule for Courts-Martial (RCM) 912 governs these challenges. Under RCM 912(f)(1)(N), a member must be excused for cause whenever it appears that the member should not sit in the interest of having the court-martial free from substantial doubt as to legality, fairness, and impartiality. This is the textual home of two related concepts that military courts treat distinctly: actual bias and implied bias.
Actual bias and implied bias
Actual bias is a member’s genuine inability to set aside preconceptions and decide the case on the evidence and the law. It is judged subjectively, through the eyes of the military judge, who assesses the member’s sincerity and demeanor.
Implied bias is different. It is bias attributed to a member as a matter of law, regardless of whether the member is in fact partial. The Court of Appeals for the Armed Forces (CAAF) reviews implied bias under an objective standard, asking how the situation would appear to a reasonable member of the public. The question is whether the public would harbor substantial doubt about the fairness of a proceeding in which that member sat. Military judges are directed to apply the liberal grant mandate, meaning that in close cases they should err on the side of granting a challenge for cause to preserve public confidence in military justice.
When the bias was never disclosed
Undisclosed bias creates a special problem because the parties never had the chance to challenge the member at trial. The integrity of voir dire depends on honest answers. Without candid disclosures, an accused is hamstrung in identifying members who should be removed. When a member fails to reveal information that bears on impartiality, the system treats that failure seriously.
How the issue is handled depends on when it comes to light. If the nondisclosure is discovered during trial, counsel can raise it then, and the military judge can question the member further, entertain a challenge for cause, and excuse the member if warranted. Because the members in a court-martial are drawn from a detailed pool rather than a large civilian venire, the judge may need to consider whether enough qualified members remain to proceed.
If the bias surfaces after trial, the matter typically becomes an appellate issue. The accused can raise it before the service Court of Criminal Appeals and, if necessary, before CAAF. The appellate court examines whether a member should have been excused for actual or implied bias and whether the failure to do so prejudiced the accused. Where the court concludes that a biased member sat, the verdict cannot stand, and the usual remedy is to set aside the findings and authorize a rehearing.
Why Article 120 cases heighten the concern
Sexual assault prosecutions can implicate strong feelings. A member may have personal experiences, command emphasis on combating sexual misconduct, training in victim advocacy, or views about credibility that bear on impartiality. None of these automatically disqualifies a member, but each is the kind of matter that should be disclosed so the parties can explore it. The risk that an undisclosed attitude could tilt deliberations is part of why the implied bias doctrine and the liberal grant mandate matter so much in this setting. The appearance of fairness to the public is itself a protected interest, independent of whether a particular member was actually swayed.
What an accused should take away
The practical lessons are concrete. First, thorough voir dire is essential, because it is the primary mechanism for uncovering bias before it can taint a verdict. Skilled defense counsel will probe members about experiences and attitudes relevant to an Article 120 case. Second, undisclosed bias is not necessarily a permanent injury. If discovered during trial, it can be cured by excusing the member. If discovered afterward, it can support an appeal that may result in the findings being set aside and a rehearing ordered. Because identifying and litigating member bias requires careful command of RCM 912 and the actual and implied bias standards, a service member facing or appealing an Article 120 case should rely on qualified military counsel to raise these issues at the right time and in the right forum.
Disclaimer
This article is provided strictly for general educational and informational purposes. It is intended to explain how the Uniform Code of Military Justice (UCMJ), the Rules for Courts-Martial, the Military Rules of Evidence, and related military administrative processes work as a matter of public legal education. It does not constitute legal advice, a legal opinion, or a recommendation about any particular case, and it is not a substitute for advice from a qualified military defense attorney who can evaluate the specific facts and command, service, and jurisdictional circumstances involved.
Reading this article, or contacting any website on which it appears, does not create an attorney-client relationship between the reader and any law firm, attorney, or author. Every court-martial, nonjudicial punishment action, administrative separation, and security-clearance matter turns on its own facts, the charged articles, the convening authority, the service branch, and the evidence, and outcomes vary widely from one case to another.
Military law also changes over time. The Military Justice Act of 2016 (effective January 1, 2019) and subsequent National Defense Authorization Acts renumbered and rewrote many punitive articles, revised the Article 32 preliminary hearing, and altered sentencing, clemency, and appellate procedures. Statutes, regulations, executive orders, the Manual for Courts-Martial, and decisions of the service Courts of Criminal Appeals and the Court of Appeals for the Armed Forces may have been amended, superseded, or reinterpreted after this article was written, and article numbers or procedures cited here may have changed.
For these reasons, no reader should act or decline to act based on this content without first consulting a licensed attorney experienced in military justice about their own situation. The author and publisher make no warranty, express or implied, as to the accuracy, completeness, timeliness, or current applicability of the information provided, and disclaim any liability for any action taken or not taken in reliance on it. If you are facing investigation, charges, or an adverse administrative action, time limits may apply, and you should seek qualified counsel promptly.