Yes, but the challenge is rarely a direct attack on the complaint itself. An informal complaint, meaning a verbal report, an email, an anonymous tip, or a routine command observation, is just a trigger for inquiry. It is not evidence of guilt, and it is not what a court-martial tries. The meaningful challenges target the steps that come after the complaint: whether the command followed the required disposition process, whether the charges rest on probable cause and admissible evidence, and whether the way the case was handled introduced unlawful influence or bias. To see where the leverage is, it helps to map how a complaint becomes a referred charge.
How an informal complaint fits into the process
Nothing in military justice requires that a case begin with a formal, sworn document. Under Rule for Courts-Martial (RCM) 303, when a commander receives information that a member may have committed an offense, the commander must make or cause a preliminary inquiry into the matter. That information can be entirely informal. The inquiry is meant to gather facts so the command can decide what to do.
What follows is a sequence of distinct, regulated decisions. Charges are formally preferred under RCM 307, which requires a charge sheet signed under oath by an accuser before a commissioned officer authorized to administer oaths. Disposition decisions are governed by RCM 306 and the related rules, which give commanders discretion over whether and how to proceed. For a general court-martial, an Article 32 preliminary hearing ordinarily must occur after preferral, and under Article 34 the convening authority must receive legal advice from the staff judge advocate before referral. Referral itself, under RCM 601, is the convening authority’s order that specified charges be tried by a specified court-martial.
The informal complaint sits only at the very front of that chain. Everything that gives the case legal weight happens in the steps that follow.
Why “the complaint was informal” is not, by itself, a winning argument
Because the complaint is merely a trigger, the fact that it was informal is generally not a basis to dismiss. The system expressly contemplates that inquiries begin from informal information. A member who argues simply that the case should be thrown out because it started with an unsworn or anonymous report will usually lose, since the law does not require a formal origin for an investigation or for the eventual sworn preferral.
The productive challenges, therefore, are aimed at the downstream steps and at the quality of what the command actually built on top of the complaint.
Challenge one: the sufficiency of the preliminary inquiry and the evidence
A complaint does not substitute for proof. By the time charges are referred, there must be a proper basis for them. The Article 32 preliminary hearing is the central vehicle here, allowing the defense to test whether there is probable cause to believe an offense occurred and that the accused committed it, and to examine the evidence rather than the rumor that started the file. If the command never developed admissible evidence and instead leaned on the bare complaint, that gap is exposed at the Article 32 hearing and in motions practice, not by attacking the complaint’s informality.
Challenge two: defects in preferral and referral
The formal steps must be done correctly. Counsel can scrutinize whether charges were properly preferred under RCM 307, whether the Article 34 legal advice was provided before referral, and whether the convening authority’s referral under RCM 601 was valid. A referral that skipped a required step, or that rested on a legally insufficient disposition process, can be challenged through a motion regardless of how the matter first came to the command’s attention.
Challenge three: unlawful command influence and a biased process
The most powerful objections often concern how the command used the complaint. Article 37 of the Uniform Code of Military Justice prohibits unlawful command influence. If the informal complaint came from or was championed by a commander who then pressured the disposition, steered the investigation toward a predetermined result, or punished those who disagreed, the defense can litigate unlawful command influence and seek dismissal or other relief. Similarly, if the accuser and the convening authority are effectively the same interested actor, the neutrality of the referral can be questioned. Here the informality of the complaint can actually help the defense, because it may reveal that the case was driven by personal animus or command agenda rather than by an objective assessment of evidence.
Challenge four: the merits at trial
Finally, the trial itself is a complete check. The complaint is not admitted to prove the charges, and the panel or military judge decides guilt only on competent, admitted evidence under the Military Rules of Evidence, with the government bearing the burden of proof beyond a reasonable doubt. A case that began with a thin informal complaint and never grew beyond it tends to collapse on the merits, because there is nothing properly in evidence to sustain a conviction.
The bottom line
Military members can absolutely challenge a prosecution that grew out of a command’s informal complaint, but the target should be chosen carefully. The complaint as a starting point is lawful and ordinary. The vulnerabilities lie in whether the preliminary inquiry produced real evidence, whether the Article 32 hearing supports probable cause, whether preferral and referral followed RCM 307, Article 34, and RCM 601, whether unlawful command influence under Article 37 tainted the disposition, and whether the government can actually prove its case at trial. Framed that way, the informal complaint becomes evidence of how the case was built, and a weak foundation is exactly what a disciplined defense is looking for.
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.
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