Factual sufficiency review under Article 66, UCMJ, is a unique and powerful protection for a service member. When a case is automatically appealed to the service’s Court of Criminal Appeals, the appellate judges have a duty to independently review the entire record and determine not only if the evidence was legally sufficient, but if they themselves are personally convinced of the accused’s guilt beyond a reasonable doubt. This is a de novo review of the facts.
The legal standard for factual sufficiency is whether, after weighing all the evidence and making allowances for the panel’s ability to see the live witnesses, the appellate court is itself convinced of the accused’s guilt. This is a higher standard than in most civilian appellate courts, which only review for legal sufficiency (i.e., whether any rational jury could have convicted). The military appellate court acts as a “thirteenth juror,” with the power to disagree with the trial panel’s finding of fact.
An appellate defense attorney will argue factual sufficiency by meticulously combing through the trial transcript and highlighting every weakness, inconsistency, and contradiction in the government’s case. They will present a compelling narrative to the appellate judges, arguing that the evidence, when viewed as a whole, simply does not support a finding of guilt beyond a reasonable doubt. If the appellate court agrees, they have the authority to set aside the conviction and dismiss the charges due to factual insufficiency.