Military Rule of Evidence 412, the military rape shield rule, generally bars evidence of an alleged victim’s other sexual behavior or sexual predisposition in a sexual-offense court-martial. It is a rule of exclusion with a narrow set of exceptions and a defined procedure, not a blanket admission of an accuser’s sexual history and not a complete ban with no openings. Both extremes misstate the rule.
What the rule keeps out #
The default under MRE 412 is exclusion. Two broad categories are presumptively inadmissible: evidence offered to prove that the alleged victim engaged in other sexual behavior, and evidence offered to prove the alleged victim’s sexual predisposition. The point is to keep a court-martial focused on the charged conduct rather than the accuser’s past, and to prevent the kind of cross-examination that turns a complainant into the person on trial.
The narrow exceptions #
The rule recognizes three exceptions where evidence of specific instances of sexual behavior may be admitted:
- Evidence offered to prove that someone other than the accused was the source of semen, injury, or other physical evidence.
- Evidence of specific instances of sexual behavior between the alleged victim and the accused, offered by the accused on the issue of consent, or offered by the prosecution.
- Evidence whose exclusion would violate the constitutional rights of the accused.
These exceptions are read narrowly. They do not open the door to general reputation evidence or to a wide-ranging inquiry into the accuser’s life. Each is tied to a specific evidentiary purpose.
The procedure that controls #
MRE 412 does not let a party simply raise the topic during testimony. It sets a gatekeeping process:
- The party intending to offer the evidence files a written motion, specifically describing the evidence and stating the purpose for which it is offered. The rule sets a deadline of at least five days before entry of pleas, which the military judge may adjust for good cause.
- The motion is served on the opposing party, and the alleged victim is notified.
- Before any such evidence is admitted, the military judge holds a closed hearing where the parties may call witnesses, including the alleged victim, and the alleged victim is given a reasonable opportunity to attend and be heard.
Only after that hearing, and a finding that an exception applies and the evidence is admissible, can the material come in. Even then, the judge weighs concerns such as confusion of the issues, undue delay, and the victim’s legitimate privacy interests.
Why it matters in these cases #
In a contested Article 120 case, the evidence often comes down to two accounts and the credibility attached to each. MRE 412 limits one avenue, the accuser’s sexual history, that the defense might otherwise explore, while preserving the specific, purpose-tied exceptions above. Whether a given piece of evidence fits an exception is litigated through the written motion and closed hearing, not assumed. The rule does not decide who is believed; it decides what the panel or judge is allowed to hear on this subject.
Because admissibility under MRE 412 turns on the precise purpose of the evidence and a strict procedure, it is one of the most actively litigated areas in a sexual-assault court-martial. Anyone facing a court-martial should consult a qualified military defense attorney about their situation. Understanding the rule means understanding that the bar is the starting point, the exceptions are real but narrow, and nothing comes in until a judge has ruled after the required closed hearing.