There is no single answer to how long you can be held in jail without being convicted, but federal law sets three checkpoints: a judge must review a warrantless arrest within 48 hours, prosecutors generally have 30 days to file formal charges, and trial should begin within 70 days after charging. Those deadlines have wide exceptions, and in practice people routinely spend months, sometimes more than a year, in pretrial detention while the clock legally pauses.
The First 48 Hours
If police arrest you without a warrant, the first deadline is fast. The Supreme Court held in County of Riverside v. McLaughlin that a judge must review whether probable cause supported the arrest within 48 hours. A jurisdiction that goes beyond that window has to prove some genuine emergency or extraordinary circumstance caused the delay. Weekends and routine paperwork backlogs don’t qualify.1Justia Law. County of Riverside v. McLaughlin, 500 U.S. 44 (1991)
This hearing is narrow. The judge only decides whether there was enough evidence to justify arresting you. If not, you should be released. If so, the government still has to formally charge you within a separate deadline, and that’s where the real timeline begins.
The Deadline to File Charges
Under the federal Speedy Trial Act, prosecutors must file an indictment or information within 30 days of arrest. If you’ve been arrested on a felony and no grand jury was in session during that window, the deadline extends to 60 days.2Office of the Law Revision Counsel. 18 USC 3161 – Time Limits and Exclusions
State charging deadlines vary, but most require formal charges within 48 to 72 hours of arrest, with longer periods sometimes allowed for felonies. If a prosecutor misses the applicable deadline, the charges must be dismissed. Whether that dismissal ends the case depends on the sanction the judge imposes. A dismissal “with prejudice” bars the government from refiling. A dismissal “without prejudice” lets the prosecution start over, which effectively resets the clock.3Office of the Law Revision Counsel. 18 USC 3162 – Sanctions
Judges weigh the seriousness of the offense heavily when choosing between the two. For minor offenses, a missed deadline more often ends the case for good. For serious violent crimes, courts lean toward allowing reprosecution.
The 70-Day Trial Clock
Once charges are filed, federal law requires trial to begin within 70 days. The countdown starts either when the indictment becomes public or when you first appear before a judge on the charges, whichever comes later. You also get at least 30 days to prepare before trial unless you waive that protection in writing.2Office of the Law Revision Counsel. 18 USC 3161 – Time Limits and Exclusions
On paper, that puts the federal maximum from arrest to trial at roughly 100 days. In reality, it almost always takes longer, because the Speedy Trial Act lists more than a dozen categories of delay that don’t count against the 70-day limit.
Why the Clock Pauses
The most common excludable delays include:
- Pretrial motions. From the day a motion is filed until it’s decided, the clock stops. Motions to suppress evidence, challenge jurisdiction, or dismiss charges each freeze the countdown.
- Competency evaluations. If a judge orders a mental health evaluation to determine whether you’re fit to stand trial, the entire evaluation period is excluded.
- Continuances granted in the “ends of justice.” This is the broadest exception and the one most often used to justify long pretrial detention.
- Codefendant proceedings. If you’re tried alongside a codefendant whose clock hasn’t expired, your case can be delayed too.
- Plea negotiations. Time spent considering a proposed plea agreement is excluded.
- Missing defendants or witnesses. If you or a key witness can’t be located, the clock pauses.
Because of these exclusions, the 70-day limit acts more like a floor than a ceiling. In complex cases involving multiple defendants, extensive discovery, or expert testimony, actual time from arrest to trial can stretch to a year or longer while still technically complying with the Act.2Office of the Law Revision Counsel. 18 USC 3161 – Time Limits and Exclusions
State Cases
State speedy trial deadlines for felonies typically range from 60 to 180 days, depending on the jurisdiction and the charges. States with shorter windows tend to allow more categories of excludable delay, which produces a similar gap between the written limit and time actually spent in custody.
When a specific statute doesn’t apply, the Sixth Amendment’s speedy trial right serves as a constitutional backstop. Under Barker v. Wingo, courts weigh the length of the delay, the reason for it, whether the defendant asserted their right, and whether the delay hurt the defense.4Justia Law. Barker v. Wingo, 407 U.S. 514 (1972) A defendant who sat quietly for a year without demanding a trial has a much weaker claim than one who raised the issue from the start.
Bail Is Usually the Real Question
For most people, how long they stay in jail before conviction depends less on the trial clock than on whether they can get out on bail. The Eighth Amendment forbids excessive bail, meaning the amount can’t exceed what’s reasonably needed to ensure you appear for court.5Legal Information Institute. Sixth Amendment, U.S. Constitution Judges set bail based on the seriousness of the charges, your criminal history, community ties, and flight risk.
Common forms of pretrial release include cash bail (you pay the full amount and get it back after appearing at all hearings), surety bonds through a bail bondsman (you pay a nonrefundable fee, typically around 10%), personal recognizance (release on your written promise to appear), and pretrial supervision with conditions like check-ins, drug testing, electronic monitoring, or curfews.
When Bail Is Denied
In federal cases, the Bail Reform Act lets a judge order pretrial detention with no bail option at all. That happens when the judge decides no combination of release conditions can reasonably ensure both public safety and your appearance.6Office of the Law Revision Counsel. 18 USC 3142 – Release or Detention of a Defendant Pending Trial
At a detention hearing, the judge looks at the offense itself (charges involving violence, terrorism, controlled substances, firearms, or crimes against minors carry a presumption favoring detention), the weight of the evidence, your personal history (employment, family, residence, health, prior record, appearance history), and the danger you’d pose if released. Being on probation, parole, or pretrial release at the time of the new arrest weighs heavily against you.6Office of the Law Revision Counsel. 18 USC 3142 – Release or Detention of a Defendant Pending Trial
Defendants held without bail in federal court can spend many months in custody before trial, especially in complex cases where excludable delays keep pausing the speedy trial clock.
Situations Where the Usual Rules Don’t Apply
Several categories of detention operate under entirely different timelines. If you or someone you know falls into one of these, the numbers above may not apply.
Immigration Detention
Non-citizens can be held for long periods without any criminal conviction. Under federal immigration law, the government can detain people during removal proceedings and after a removal order is issued. The Supreme Court in Zadvydas v. Davis set a presumptive six-month limit on detention after a final removal order when there’s no realistic chance of actually deporting the person.7Legal Information Institute. Zadvydas v. Davis, 533 U.S. 678 (2001) For people still fighting removal, the picture is less clear. In Jennings v. Rodriguez (2018), the Court held that the government has statutory authority to detain non-citizens throughout removal proceedings without a bond hearing, and it left open whether the Constitution imposes any outer limit.8Congress.gov. Immigration Detention: A Legal Overview
Material Witness Holds
Federal law allows the government to arrest and detain someone who hasn’t been accused of any crime if their testimony is material to a criminal case and a subpoena wouldn’t be practical. The same release-or-detain framework used for defendants applies, so a witness can be held in jail if no release conditions seem adequate. The law requires release once the testimony can be preserved by deposition, but sets no hard maximum for how long that takes.9Office of the Law Revision Counsel. 18 USC 3144 – Release or Detention of a Material Witness
Probation and Parole Violation Holds
If you’re on parole or probation and suspected of violating the terms, you can be taken into custody on a warrant or detainer. These holds run on a separate timeline from any new criminal charges. In the federal system, a probable cause hearing before an examiner generally must occur within five days of custody, and a final revocation hearing typically follows within 65 to 90 days. State timelines vary widely, and some jurisdictions deny bail entirely on violation holds for higher-risk offenders, meaning custody continues until the revocation hearing is complete.
How to Push Back on Prolonged Detention
If you believe you’ve been held too long, several legal tools are available. Almost all of them work better with a lawyer.
A writ of habeas corpus forces the government to justify your detention before a judge. Protected by Article I, Section 9 of the Constitution, it’s the most direct way to challenge unlawful custody. If the government can’t show legal authority for holding you, the court orders release. Habeas petitions are especially useful when detention has continued without charges or when the speedy trial clock appears to have expired.
Under the federal Speedy Trial Act, you can also move to dismiss the charges if trial hasn’t started within the required time. You bear the initial burden of showing the deadline has passed; the government must then justify any delays it claims are excludable. Critical detail: if you don’t raise this issue before trial or before entering a guilty plea, you waive it entirely.3Office of the Law Revision Counsel. 18 USC 3162 – Sanctions
If bail was set but you can’t afford it, your attorney can file a motion to reduce the amount or modify the conditions. Changed circumstances help: new evidence of community ties, a job offer, a proposed living arrangement, or a third-party custodian willing to supervise you.
If your attorney sits on a viable speedy trial motion or fails to challenge an unreasonable detention, that inaction may amount to ineffective assistance of counsel under the Sixth Amendment. The Strickland v. Washington standard requires proof that the lawyer’s conduct fell below an objective standard of reasonableness and that there’s a reasonable probability the outcome would have been different with competent representation. Courts give attorneys significant benefit of the doubt, but a lawyer who ignores clear speedy trial violations or never requests a bail hearing when one is warranted can cross that line.
Timing matters across all of these options. Rights you don’t assert can be waived, and delays you don’t object to become part of the record. Raising the issue early and repeatedly puts you in a much stronger position than staying silent.
Credit for Time Served if You’re Convicted
If you’re eventually convicted and sentenced to prison, time spent in pretrial detention counts. Under 18 U.S.C. ยง 3585, you receive credit for any time in official detention before sentencing, as long as it resulted from the offense you’re being sentenced for (or any other charge arising from the same conduct) and hasn’t already been credited against a different sentence.10Office of the Law Revision Counsel. 18 USC 3585 – Calculation of a Term of Imprisonment
The no-double-counting rule matters. If you were in custody on two separate cases and the time was applied to one sentence, it won’t also reduce the other. Most states have similar rules with varying details. In federal cases, the Bureau of Prisons, not the sentencing judge, makes the final calculation, and errors are more common than they should be. If you’ve spent significant time in pretrial detention, ask your attorney to confirm the credit is calculated correctly.