Yes, and a suppression motion is one of the most consequential filings in a case, but it is also one of the most time-sensitive. The rules that govern how and when to file are unforgiving: miss the window and the issue can be lost entirely. Filing effectively is a matter of motion practice, knowing the deadline, the forum, and the form.
The deadline: before plea, or waived
The single most important rule is timing. Under the Rules for Courts-Martial governing motions, a motion to suppress generally must be made before the plea, and a failure to do so waives the motion absent good cause. And good cause is narrow: it generally does not exist where the moving party knew, or could have known, about the evidence before the deadline. So a defense that sits on a suppression issue can forfeit it, which makes early identification of suppressible evidence essential.
In practice, once trial counsel notifies the defense that the evidence exists, the accused must move to suppress before entering pleas, and absent good cause the military judge must hold a hearing and rule on the motion before requiring a plea.
The forum and the hearing
Suppression motions are litigated at a dedicated session. Hearings on motions are held at an Article 39(a) session, usually after arraignment but before a plea is entered, where the judge takes evidence and argument on the motion outside the presence of any panel. This is the arena in which the suppression issue is actually decided.
The form and content
The motion itself has requirements. A motion may be oral or, at the judge’s discretion, written, and it must state the grounds on which it is made and set forth the relief sought. So the filing must clearly identify what is being challenged, the legal basis (such as an unlawful search or an improperly obtained statement), and exactly what the defense wants the court to do, exclude the evidence.
When a member’s rights were violated in a search, the attorney files the suppression motion before plea, since waiting can waive it, and litigates it at a pretrial session.
The core point is that suppression is won or lost partly on procedure. The motion must be made before plea or it is generally waived, it is litigated at an Article 39(a) hearing before pleas are entered, and it must state its grounds and the relief sought, so timely, well-framed motion practice is as important as the underlying legal argument.
Frequently Asked Questions
When must a motion to suppress be filed?
Generally before the plea. Failing to raise it by then waives the motion absent good cause, and good cause usually does not exist if the party knew or could have known about the evidence earlier.
Where is a suppression motion litigated?
At an Article 39(a) session, typically after arraignment but before a plea is entered, where the military judge hears evidence and argument and rules on the motion.
What must a suppression motion contain?
It must state the grounds on which it is made, such as an unlawful search or an improperly obtained statement, and set forth the specific relief sought, namely exclusion of the evidence.
This article is general information about suppression motions. It is not legal advice and does not create an attorney-client relationship. Deadlines and procedures are strict and can change. Anyone facing a court-martial should consult qualified defense counsel promptly.
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