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How United States v. Mendoza Can Help Your Military Sexual Assault Defense

If you’re facing military sexual assault charges, especially those involving alcohol, understanding the October 7, 2024 United States v. Mendoza ruling is essential for your defense strategy. The Court of Appeals for the Armed Forces (CAAF) held that the government cannot prove sexual assault without consent merely by establishing that the alleged victim was too intoxicated to consent.
Legal update: This discussion includes United States v. Casillas (August 20, 2025) and United States v. Moore (January 23, 2026). Intoxication evidence remains relevant to consent. Moore also explains that proof of no consent before a period of incapacity, together with the later sexual act, may establish the without-consent offense. The applicable version of Article 120 depends on the date of the alleged conduct.

This landmark decision can significantly impact how military courts handle cases involving alcohol, and knowing how it applies to your situation could be the key to protecting your future.

Can Intoxication Alone Mean No Consent in a Military Court?

One common tactic in military sexual assault cases is for prosecutors to argue that if the alleged victim was too intoxicated, they were not competent to give consent. They may rely on the statutory definition of consent, which says it must be “freely given by a competent person.” But under the Mendoza ruling, the court rejected this broad interpretation.

Under Article 120(b)(2)(A), merely establishing incapacity due to intoxication is not enough to prove that consent wasn’t given. Intoxication evidence may still be considered with all the surrounding circumstances in deciding whether the government proved lack of consent beyond a reasonable doubt.

Why Mendoza Is Critical for Military Sexual Assault Defense

Here’s why this case is a game-changer:

  • Distinct Proof Requirements: The government cannot prove lack of consent merely by establishing incapacity due to intoxication. The burden remains proof beyond a reasonable doubt that the alleged victim did not give consent.
  • Clear Legal Distinction: The Mendoza ruling distinguishes the incapacity and without-consent offenses and the elements the government must prove for each. Understanding this difference is key to building a strong defense.
  • Leverage for Your Defense: Expert testimony on how alcohol affects memory and decision-making could now play a larger role in military sexual assault defenses. Your defense team can bring in forensic experts to explain these complexities.

Real-Life Example

Picture this: You and another person are drinking together, and the next day they claim they were too drunk to remember and couldn’t have consented. Under Mendoza, the prosecution cannot prove the without-consent charge merely by showing that the person was incapable of consenting. The government may use direct or circumstantial evidence, including evidence of intoxication, but must prove lack of consent beyond a reasonable doubt.

Alcohol’s Role in Military Sexual Assault Cases

Alcohol is a significant factor in military sexual assault cases. In the 2018 Workplace and Gender Relations Survey of Active Duty Members, alcohol use by the alleged victim, the alleged offender, or both was involved in a sexual assault event for 62% of women and 49% of men who indicated experiencing sexual assault. This is why the Mendoza ruling is so critical; it clarifies the distinct elements the government must prove in cases where alcohol was involved.

Further, the Department of Defense Fiscal Year 2023 Annual Report on Sexual Assault reported a decline in estimated sexual assault prevalence in the active force compared with 2021, the first such decrease in nearly a decade. However, alcohol remains a common element, making cases like Mendoza highly relevant to service members facing charges.

What Your Military Defense Team Should Do

  • Request Updated Jury Instructions: Your defense team should ensure the court gives instructions consistent with Mendoza, Casillas, and Moore, ensuring the jury fully understands the law.
  • Challenge Prosecution’s Use of Intoxication: If the prosecution tries to prove lack of consent merely by establishing incapacity due to intoxication, your team should challenge that argument under Mendoza.
  • Bring in Expert Witnesses: Expert testimony on how alcohol affects decision-making could now be critical in explaining why intoxication doesn’t necessarily equal incapacity to consent.

Protecting Your Rights: How Mendoza Could Impact Your Case

In military sexual assault cases involving alcohol, this ruling provides your defense team with more options to challenge the prosecution’s narrative. The government’s burden remains proof beyond a reasonable doubt. For the without-consent offense, it cannot meet that burden merely by establishing that the alleged victim was incapable of consenting.

At Bilecki Law Group, we specialize in defending service members facing sexual assault charges in military courts. With the Mendoza ruling on our side, we will use every legal advantage to fight for your future. Contact us today to see how we can build a robust defense based on the latest court rulings.