The right to a speedy trial in the military is not a single rule but a set of separate protections that run on their own clocks. Three of them matter: Article 10 of the UCMJ, which demands prompt action when an accused is held in pretrial confinement; Rule for Courts-Martial 707, which sets a 120-day arraignment deadline; and the Sixth Amendment, which supplies the constitutional backstop. They overlap but are not the same, and a case can satisfy one while still violating another. When a court finds a violation, the remedy can be dismissal of the affected charges.
RCM 707: the 120-day clock #
The most concrete of the three is the 120-day rule. Under RCM 707, the accused must be brought to trial within 120 days, and “brought to trial” means arraignment, the first court session before the military judge. The clock starts on the earliest of three triggering events:
- Preferral of charges.
- The imposition of pretrial restraint, such as restriction, arrest, or confinement.
- Entry on active duty for the offense.
The counting has a quirk worth noting. The triggering day itself is not counted, but the day of arraignment is included in the total. Certain periods can be excluded from the count, for example delays the defense requests or that the military judge approves, so the calendar days that elapse and the days that count against the government are not always the same number.
Article 10: a stricter clock for confinement #
Article 10 is a distinct and more demanding protection, and it only switches on when the accused is placed in pretrial confinement or arrest. Once that happens, the government must proceed with reasonable diligence toward trial. The key point is that the two protections do not collapse into each other. Meeting the 120-day rule of RCM 707 does not, by itself, prove the government moved with the reasonable diligence Article 10 requires. An accused in confinement can be arraigned inside 120 days and still raise an Article 10 claim if the government sat on the case without good reason.
A short contrast makes the difference clear:
- Not confined: RCM 707’s 120-day clock and the Sixth Amendment apply; Article 10 does not.
- In pretrial confinement: all three apply, and Article 10 adds the reasonable-diligence standard on top of the 120-day count.
The Sixth Amendment backstop #
The constitutional speedy-trial right also reaches courts-martial. It is analyzed flexibly, weighing factors such as the length of the delay, the reasons for it, whether the accused asserted the right, and whether the delay caused prejudice. It operates alongside the two military rules rather than replacing them, which is why a thorough speedy-trial analysis looks at all three sources rather than just the 120-day number.
Why the clocks are separate #
Treating any delay as an automatic loss of the case is a mistake; so is assuming the three protections are one rule with one deadline. Each has its own trigger, its own standard, and its own exclusions. RCM 707 turns on a day count from a defined starting event. Article 10 turns on confinement plus diligence. The Sixth Amendment turns on a multi-factor balance. A violation of any one can support a motion to dismiss, but which clock applies, and whether it was actually breached, depends on the facts of confinement, the dates, and the reasons for the delay.
Because the analysis is fact-intensive and the exclusions are technical, this material is general information rather than legal advice, and it does not predict whether any particular delay crosses a line. The overall question of how long a court-martial typically takes is addressed separately in this guide. Anyone facing a court-martial should consult a qualified military defense attorney about their situation.