Right to a Speedy Trial Violated: Filing the Motion to Dismiss

If your right to a speedy trial has been violated, the step that actually ends the case is a pretrial motion to dismiss the charges. A speedy trial violation dismissal is the only remedy courts can grant under the Sixth Amendment, and in federal court it is also the sanction built into the Speedy Trial Act.¹ Whether the dismissal is permanent or lets the government refile depends on which theory you win on and, in some cases, on how the judge weighs the circumstances.

When the Clock Starts

The speedy trial right attaches at a specific moment: arrest or formal charge. The Supreme Court held in United States v. Marion that the right does not cover the pre-arrest investigation period, however long it ran.² From the moment you are arrested or indicted, time counts.

The right applies in both federal and state prosecutions through the Fourteenth Amendment under Klopfer v. North Carolina.³ State courts also have their own statutory deadlines, which can be shorter than the federal ones; those rules control if your case is in state court.

The Constitutional Standard

The Sixth Amendment does not pick a number of days. In Barker v. Wingo, the Supreme Court adopted a four-factor balancing test, with no single factor controlling the outcome.⁴ Courts weigh these factors together, and the same length of delay can come out differently in different cases.

Length of the Delay

First, the court asks whether the delay is “presumptively prejudicial.” Courts generally treat delays approaching or exceeding one year as long enough to trigger review of the remaining factors. A shorter delay may raise concern in a straightforward case; a longer one may be tolerated in a complex prosecution with voluminous records. If the delay is not presumptively prejudicial, most courts stop there.

Reason for the Delay

Not all delays weigh equally. A deliberate prosecution tactic to hamper the defense counts most heavily against the government.⁴ Court congestion and understaffed prosecutor offices still count against the government, but less so. Delays you requested count against you.

Whether You Asserted the Right

Defendants who repeatedly demand a speedy trial on the record give courts strong evidence that the right is being denied. In Barker itself, the defendant’s failure to demand trial for most of the delay undercut his claim; the Court concluded he had strategically waited in hopes his codefendant would be acquitted.⁴ If the delay feels unreasonable, the demand belongs on the record at every opportunity.

Prejudice to the Defendant

The fourth factor looks at actual harm. The Supreme Court identified three interests the right protects: preventing oppressive pretrial incarceration, limiting the anxiety of living under accusation, and preserving the defense itself.⁵ The third matters most. Witnesses who have died or disappeared, memories that have faded on critical points, physical evidence that has been lost — these harms go to the fairness of the trial itself and cannot be undone.

This is where most speedy trial claims are won or lost. The Barker defendant could not identify any witnesses who had become unavailable, and the Court found only “two very minor lapses of memory” in the trial transcript.⁵ That was not enough. Documenting concrete harm early and specifically is what gives this factor weight.

Federal Speedy Trial Act Deadlines

Alongside the constitutional standard, the Speedy Trial Act sets hard numbers in every federal case.¹ The core deadlines:

The government must file an indictment or information within 30 days of arrest. If no grand jury is in session during that period in a felony case, the deadline extends by another 30 days.⁶
Trial must begin within 70 days of the public filing of the indictment or your first appearance before a judge, whichever is later.⁶
Trial cannot start sooner than 30 days after you first appear with counsel or waive counsel, unless you consent in writing.⁶

State statutes set their own clocks. Some run as short as 60 days for defendants in custody; others allow several months depending on the charge. If your case is in state court, the local statute governs the counting.

Events That Stop the Clock

The 70 days are not calendar days. The statute lists events that automatically pause the clock, and prosecutors rely on these exclusions to defend delays that look unreasonable at first glance. The most common:

Pretrial motions, from filing through resolution.
Mental competency or physical capacity evaluations.
Interlocutory appeals.
Reasonable delay attributable to a codefendant whose own clock has not expired.
Periods when you are a fugitive or otherwise unavailable despite reasonable efforts to locate you.
Deferred prosecution agreements approved in writing by the court.
Time the court spends considering a proposed plea agreement.⁶

The broadest exclusion is the “ends of justice” continuance. A judge can grant additional time if continuing serves justice better than forcing trial on schedule, but must state the reasons on the record either orally or in writing. Valid grounds include unusual case complexity, risk of a miscarriage of justice, or the defense’s reasonable need to prepare. Court calendar congestion and prosecution unpreparedness are not valid grounds.⁶ An “ends of justice” continuance granted without the required findings on the record is a legitimate target for challenge.

How You Can Lose the Right

The right does not protect itself. Several common moves weaken or forfeit it.

Silence alone is not waiver of the Sixth Amendment claim. The Supreme Court has held that waiver of a constitutional right requires “intentional relinquishment or abandonment of a known right,” not inaction.⁴ But silence still counts against you under the third Barker factor, sometimes heavily enough to decide the case.

The Speedy Trial Act’s waiver rule is harsher. If you do not file a motion to dismiss before trial begins or before entering a guilty plea, you lose the statutory right to dismissal entirely.⁷ There is no good-cause escape hatch.

Continuances you request are the most common self-inflicted wound. Each one is excluded from the statutory clock and weighs against you under Barker. Before agreeing to any continuance, understand how it moves both timelines.

What Dismissal Looks Like

The relief available depends on which theory wins.

Constitutional Violations Are Dismissed With Prejudice

When a court finds a Sixth Amendment violation, the charges must be dismissed with prejudice. The case is over, and the government cannot refile. The Supreme Court held in Strunk v. United States that courts have no discretion to fashion lesser remedies such as a sentence reduction.¹ The harms the right guards against cannot be unwound after the fact.

Statutory Violations Can Go Either Way

A Speedy Trial Act violation also requires dismissal, but the judge decides whether it is with or without prejudice. Dismissal without prejudice lets the government refile. The judge weighs three factors: the seriousness of the offense, the circumstances that produced the delay, and the impact of reprosecution on the administration of justice.⁷ A serious violent crime is more likely to end in dismissal without prejudice; a less serious case marred by government negligence is more likely to end permanently. That is why defense counsel typically presses both theories whenever the facts support them.

Filing the Motion to Dismiss

Timing drives the motion. Under Federal Rule of Criminal Procedure 12, a speedy trial challenge must be raised by pretrial motion. If the court has set a motions deadline, meet it; otherwise, the deadline is the start of trial. An untimely motion can still be considered on a showing of good cause, but that is not a backstop to rely on.⁸

What the Motion Must Show

A strong motion gives the court two things: a detailed timeline and specific evidence of harm.

Build the timeline from the date of arrest or formal charge. Document arraignment, every status hearing, every continuance (who requested it and why), motions filed and resolved, and dead periods when nothing moved. The point is to show the court exactly how many non-excludable days have run and who is responsible.

For a statutory claim, the burden is mostly arithmetic: show that non-excludable time exceeds the 30-day or 70-day limit.⁷ For a constitutional claim, you also need evidence on all four Barker factors, with real weight on prejudice. Affidavits from witnesses whose memories have faded, proof that a key witness has died or cannot be located, documentation of lost or destroyed evidence, and records of pretrial detention or financial harm all strengthen the prejudice showing.

Attach every speedy trial demand your attorney placed on the record. Transcripts of objections to continuances and requests for trial dates are powerful evidence under the third factor.

After You File

The prosecution responds in writing, usually arguing that excludable time absorbs the delay or that you contributed to it. The judge sets a hearing where both sides argue and may call witnesses. The judge then rules on dismissal and, for a statutory violation, on whether it is with or without prejudice.

If the Motion Is Denied

Denial is not the end, but the options narrow. The denial of a pretrial motion to dismiss is generally not immediately appealable in federal court. The usual path is to go to trial and, if convicted, raise the issue on direct appeal, where the appellate court reviews whether the trial judge correctly applied Barker or the Speedy Trial Act’s exclusions.

In limited circumstances, a defendant held in pretrial custody may seek relief through a habeas petition under 28 U.S.C. § 2241, which authorizes federal courts to grant the writ to anyone held in custody in violation of the Constitution.⁹ It is an unusual path and far from guaranteed.

Protecting the Record Now

If you believe your case has been delayed unreasonably, a few steps strengthen your position before you ever file:

Have your attorney file a formal demand for a speedy trial and renew it at every hearing. Each demand feeds the third Barker factor and leaves a record the prosecution has to explain.
Keep your own log of court dates, continuances, and the stated reason for each. Your attorney should be tracking this, but a parallel record catches omissions.
Object on the record to continuances you did not request. Silent acquiescence can be used against you.
Document prejudice as it develops. If a witness moves, if evidence is destroyed, if your own recollection of events is going, write it down and tell your attorney right away. Real-time documentation is more persuasive than reconstruction months later.
Weigh every proposed continuance carefully. Some genuinely help the defense; those can be worth the time cost. Others simply hand days to the government. Agree only when you understand the tradeoff.

A speedy trial motion is one of the few pretrial tools that can end a criminal case outright. Courts scrutinize these motions carefully and prosecutors fight them hard. The defendants who prevail are the ones who started building the record early, kept asserting the right, and tied specific harms to specific delays.

1
Constitution Annotated. Amdt6.2.1 Overview of Right to a Speedy Trial
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LII / Legal Information Institute. When the Right to a Speedy Trial Applies
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Constitution Annotated. Application of the Bill of Rights to the States Through the Fourteenth Amendment
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Cornell Law School. Modern Doctrine on Right to a Speedy Trial
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LII / Legal Information Institute. Barker v. Wingo, 407 U.S. 514
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Office of the Law Revision Counsel. 18 USC 3161 – Time Limits and Exclusions
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Office of the Law Revision Counsel. 18 USC 3162 – Sanctions
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LII / Legal Information Institute. Federal Rules of Criminal Procedure Rule 12 – Pleadings and Pretrial Motions
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Office of the Law Revision Counsel. 28 USC 2241 – Power to Grant Writ