Often, yes. In a court-martial, many chain of custody problems can be addressed through witness testimony alone, because under military evidence law most chain of custody gaps affect the weight a factfinder gives evidence rather than whether the evidence is admissible at all. That said, the answer is not unlimited. Testimony can cure ordinary gaps and breaks, but it cannot rescue evidence whose identity or integrity cannot be reasonably established. Understanding where that line falls is the key to the question.
What chain of custody is meant to show
Chain of custody is the documented and testimonial account of who handled an item of physical evidence, when, and how, from the moment it was collected until it is offered in court. Its purpose is to support a reasonable assurance that the item presented to the panel is the same item that was seized and that it has not been altered, contaminated, or swapped. Chain of custody is therefore a tool of authentication, not an independent rule that automatically excludes evidence when paperwork is imperfect.
The governing standard in military courts
Authentication in courts-martial is governed by Military Rule of Evidence 901. The rule requires the proponent to produce evidence sufficient to support a finding that the item is what the proponent claims it to be. This is a relatively modest threshold. The proponent need only make a prima facie showing of authenticity, after which the item may be admitted, and the question of how much to trust it passes to the factfinder.
Within that framework, the established principle is that gaps or breaks in the chain of custody go to the weight of the evidence rather than to its admissibility. The government is not required to exclude every possibility of tampering or to account for every minute of an item’s existence. It must show, by direct or circumstantial evidence, a reasonable probability that the evidence is authentic and unchanged. Once that showing is made, imperfections in the chain become arguments for the defense to make about reliability, not automatic grounds to keep the evidence out.
How testimony does the work
This is precisely where witness testimony becomes powerful. A witness who collected, sealed, transported, stored, or analyzed an item can testify to its handling, to distinctive markings or labels, to seals that were intact, and to the procedures that protect against tampering. Such testimony can establish the reasonable probability of authenticity even when a written custody document has a missing signature, an unexplained interval, or a clerical error. Distinctive features of the item itself, described by a witness, can also support identification independent of the paperwork. In this way testimony alone frequently satisfies Military Rule of Evidence 901 and resolves what would otherwise look like a fatal gap.
The limits of curing problems by testimony
Testimony is not a universal fix, and the question’s phrase resolved alone deserves care. Two kinds of problems resist cure. First, if the government cannot make even the threshold prima facie showing that the item is what it claims, for example where the item is generic, unmarked, and no witness can reliably connect it to the case, then authentication fails and the evidence should not be admitted. Testimony that cannot bridge that gap does not resolve it.
Second, a chain of custody issue can shade into a different and more serious problem: actual evidence of tampering, contamination, or substitution. When there is real indication that an item was altered, the issue is no longer a mere gap going to weight. Depending on the facts, a military judge may find the reasonable probability of authenticity is not met, or may exclude or limit the evidence on other grounds. Witness testimony that explains away genuine signs of tampering may persuade the factfinder, but it will not always preserve admissibility, and it certainly will not guarantee the panel believes the item.
Weight versus admissibility in practice
The distinction between weight and admissibility is the heart of the matter. Admissibility is the judge’s gatekeeping decision about whether the panel may consider the evidence at all. Weight is the panel’s judgment about how much to trust it. Because most chain of custody flaws affect weight, the realistic defense strategy is usually not to expect exclusion but to attack reliability before the panel. Defense counsel can cross-examine handlers about lapses, highlight the gaps and clerical errors, and argue that the imperfections create reasonable doubt about whether the item is authentic or whether any test result can be trusted. That argument can be highly effective even when the evidence is admitted.
Practical guidance
For an accused, the lesson is twofold. Do not assume a flawed custody record will get evidence thrown out, because the threshold for admission is low and testimony commonly satisfies it. At the same time, recognize that chain of custody weaknesses remain valuable, because they give the defense concrete material to undermine the credibility of the government’s physical and forensic evidence in front of the panel. Skilled counsel will press both the admissibility question, where a genuine authentication failure or evidence of tampering exists, and the weight question, where ordinary gaps live.
Conclusion
Chain of custody errors can frequently be resolved through witness testimony alone, because under Military Rule of Evidence 901 the government need only show a reasonable probability of authenticity, and ordinary gaps go to weight rather than admissibility. Testimony from those who handled the item often supplies that assurance. The cure is not absolute, however. Where authentication cannot be established at all, or where there is real evidence of tampering, testimony may not save the evidence, and the issue can affect admissibility itself. Experienced military defense counsel can identify which category a given chain of custody problem falls into and litigate it accordingly.
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.
For these reasons, no reader should act or decline to act based on this content without first consulting a licensed attorney experienced in military justice about their own situation. The author and publisher make no warranty, express or implied, as to the accuracy, completeness, timeliness, or current applicability of the information provided, and disclaim any liability for any action taken or not taken in reliance on it. If you are facing investigation, charges, or an adverse administrative action, time limits may apply, and you should seek qualified counsel promptly.