Obstruction charges often arise after the fact. A service member who is the subject of an investigation, or who is connected to one, may be accused of trying to interfere with it by talking to a witness, deleting a message, or shaping how events are described. In the military justice system, this conduct is prosecuted under Article 131b of the Uniform Code of Military Justice, obstructing justice. Because the offense hinges on specific intent and on the existence of proceedings, the available defenses focus tightly on those elements.
What the government must prove
Article 131b punishes a person subject to the UCMJ who engages in conduct in the case of a certain person against whom the accused had reason to believe there were or would be criminal or disciplinary proceedings pending, and who does so with the intent to influence, impede, or otherwise obstruct the due administration of justice. Criminal and disciplinary proceedings for this purpose include courts-martial and nonjudicial punishment, and the conduct can occur before, during, or after a formal investigation.
Two features of the offense are critical to the defense. First, the accused must have acted with the specific intent to obstruct justice. Second, actual obstruction is not required. The government does not have to prove that the investigation was in fact derailed, only that the accused acted with the prohibited intent in connection with a person facing proceedings. Because intent and the existence of contemplated proceedings carry the offense, the defense usually attacks one or both.
The intent defense
The most important defense is the absence of the specific intent to obstruct justice. Many actions that look suspicious to an investigator are entirely innocent. A service member who tells a friend “they are asking questions, just be honest” is not obstructing justice. A member who deletes ordinary messages in the routine course of cleaning out a phone, without any purpose of impeding an inquiry, lacks the required intent. A member who declines to cooperate, or who exercises the right to remain silent, is not obstructing justice, because invoking one’s own rights is not an attempt to corrupt the administration of justice.
The defense develops this theme by offering an innocent explanation for the conduct and by showing the absence of any purpose to influence the proceeding. The line between protecting oneself and obstructing justice matters here. A member is entitled to defend against an investigation, to consult counsel, and to remain silent. What the statute forbids is acting with the corrupt purpose of interfering with the process, and demonstrating that the member’s purpose was something else is a complete answer to the charge.
The no-pending-proceedings defense
A second defense targets the requirement that the accused had reason to believe that proceedings were pending or would be pending against a particular person. If, at the time of the conduct, there was no investigation and no reason to anticipate one, the conduct cannot be obstruction. Timing is often decisive. Conduct that predates any reason to believe proceedings were coming falls outside the offense. The defense examines exactly when the investigation began, when the accused learned or had reason to learn of it, and whether the charged conduct came before or after that point.
Attacking the connection between conduct and the proceeding
The statute requires that the conduct be done in the case of a certain person facing proceedings and be aimed at the administration of justice. The defense can contest whether the alleged act was actually connected to any proceeding or to influencing a witness, a hearing officer, or a party. Generalized or unrelated conduct that the government tries to recast as obstruction may fail this nexus requirement. Showing that the act had nothing to do with the proceeding, or was not directed at influencing it, undermines an essential element.
Witness-related allegations
A common form of obstruction allegation involves contact with witnesses. The defense here distinguishes lawful communication from wrongful influence. Speaking with a witness is not itself a crime. Encouraging a witness to tell the truth is not obstruction. The offense requires an effort to wrongfully influence, intimidate, or impede a witness, or to discourage the reporting of information. Where the contact was innocent, where it encouraged honesty, or where it never sought to alter the witness’s account, the wrongful-influence element is missing.
Procedural defenses
As with any military charge, the manner of investigation can supply additional defenses. Statements the accused made may be suppressed if taken without the Article 31 advisement required when a suspect is questioned for a law enforcement or disciplinary purpose. Evidence such as recovered messages or recordings may be challenged on chain-of-custody, authentication, or reliability grounds. Misidentification of who took the alleged action is also possible where the proof is circumstantial.
How a defense comes together
In practice, an obstruction defense weaves these elements together. Counsel reconstructs the timeline to test the pending-proceedings requirement, develops the innocent purpose behind the charged conduct to defeat the intent element, and separates lawful self-protection and honest witness communication from the corrupt influence the statute targets. Because the offense does not require that any obstruction actually succeeded, the contest is almost entirely about what the accused intended and what the accused knew.
A service member who learns of an obstruction allegation should be especially careful, because additional uncounseled conduct or statements can deepen the exposure. The wisest course is to stop discussing the matter, preserve any evidence that explains the conduct innocently, and consult qualified defense counsel who can analyze the intent and timing questions on which these cases turn.
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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