Character witnesses occupy a special place in military culture. The military prizes reputation, and the idea that good people who know you well can speak to who you are carries real weight. So when a service member faces a court-martial or an adverse proceeding, the instinct to gather supportive colleagues, supervisors, and friends is strong and often sound. But character evidence in the military is governed by technical rules that are easy to misunderstand, and using it poorly can backfire badly. Whether it is worth involving a military attorney comes down to this: character witnesses are a genuine asset, but they are also a minefield of evidentiary rules and tactical traps, and counsel is what turns the asset into an advantage rather than a liability.
Character evidence is more restricted than people assume
The most common misunderstanding is that good character can be offered freely to show that an accused would not have committed the charged offense. That is not how the rules work. The Military Rules of Evidence generally prohibit using a person’s character or character trait to prove that the person acted in conformity with that character on a particular occasion. There are exceptions, but they are specific.
The military once recognized a broad “good military character” defense, but that has been substantially narrowed. Evidence of general military character is no longer admissible on the merits for many offenses, including offenses under Article 120 and a range of other enumerated articles, and it is admissible only where it is actually relevant to an element of the charged offense. This is exactly the kind of rule that a layperson would not know and that determines whether a planned character defense is viable at all. An attorney evaluates, before any witness is called, whether character evidence is even admissible for the specific charges in your case.
How character can properly be proved
When character evidence is admissible, the method matters. Under the Military Rules of Evidence, character is ordinarily proved through testimony about a person’s reputation or through testimony in the form of an opinion, and inquiry into specific instances of conduct is allowed only in limited circumstances, such as on cross-examination. A well-meaning witness who launches into detailed stories about specific good deeds may stray outside what the rules permit, drawing objections and, worse, opening the door to the government introducing specific bad acts in rebuttal. Counsel prepares witnesses …