How long it takes to get charged with a crime depends almost entirely on one thing: whether you’ve already been arrested. If you’re in custody, the Constitution requires a judge to find probable cause within 48 hours, and in federal cases prosecutors have 30 days to file a formal charge. If no arrest has happened, there’s no short deadline at all — the government can take up to the statute of limitations, which is five years for most federal felonies and has no limit for crimes punishable by death. Everything in between comes down to how complex the investigation is and how busy the people handling it are.
If You’ve Been Arrested, the Clock Is Short
Two separate deadlines start running the moment you’re taken into custody, and they exist for different reasons.
48 Hours for a Probable Cause Finding
The U.S. Supreme Court ruled in County of Riverside v. McLaughlin that anyone arrested without a warrant must receive a judicial determination of probable cause within 48 hours.1Justia Law. County of Riverside v McLaughlin, 500 US 44 (1991) This isn’t a trial. A judge or magistrate simply reviews whether there was enough reason to arrest you in the first place. If the government can’t justify holding you within that window, you must be released. The Court was explicit that weekends and administrative convenience don’t excuse delay.
30 Days for a Federal Indictment or Information
In federal cases, the Speedy Trial Act requires prosecutors to file an indictment or information within 30 days of arrest.2Office of the Law Revision Counsel. 18 USC Chapter 208 – Speedy Trial If no grand jury is in session during that period, the deadline extends to 60 days. Miss the deadline, and the charges in the complaint must be dismissed. The court then decides whether the dismissal is permanent or whether the government gets another try, weighing factors like the seriousness of the offense and the reason for the delay.3Office of the Law Revision Counsel. 18 USC 3162 – Sanctions
Most states have their own versions of these deadlines, with different specific timeframes. The practical effect is the same: once you’re in custody, the government has to formalize charges quickly or let you go.
If No Arrest Has Happened Yet
Without an arrest, no constitutional stopwatch runs. The timeline depends on how long the investigation takes and how quickly the prosecutor decides to act.
Every criminal charge starts with an investigation. Police interview victims, suspects, and witnesses, collect physical evidence like DNA, fingerprints, or weapons, and pull electronic evidence like surveillance footage and phone records. A shoplifting incident caught on clear video might produce a complete report within a day. A financial fraud scheme involving hundreds of transactions across multiple accounts could take months or years to untangle.
Police don’t file charges. That authority belongs to the prosecutor — a district attorney at the state level or a U.S. Attorney in federal cases. Once detectives finish their initial work, they send the file to the prosecutor’s office for review. The prosecutor evaluates whether the evidence supports probable cause, the constitutional minimum for bringing charges.4Legal Information Institute. Probable Cause Most experienced prosecutors look past that minimum and ask whether the evidence is strong enough to prove guilt beyond a reasonable doubt at trial.
From there, the prosecutor can file the charges police recommended, file different or lesser charges, send the case back for more investigation, or decline to prosecute. Declining doesn’t necessarily kill the case. If new evidence surfaces, the prosecutor can revisit it any time before the statute of limitations expires.
When charges do get filed, the method used affects timing. A criminal complaint — a sworn statement reviewed by a judge for probable cause — can be prepared in hours and is often used right after an arrest, though a felony can’t reach trial on a complaint alone. Federal felony prosecutions require a grand jury indictment under the Fifth Amendment, and getting one in a complex case can take weeks or months of evidence presentation.5Constitution Annotated. Grand Jury Clause Doctrine and Practice Many states, and federal defendants who waive the grand jury requirement, proceed by information — a charging document the prosecutor files directly.
What Slows the Timeline Down
Outside the hard legal deadlines, four practical factors drive how quickly charges come together.
Severity and complexity. Serious violent felonies get more investigative resources and higher priority, which can actually mean faster charging in cases where the suspect is known and the evidence is clear. Complex cases run the other way. White-collar fraud with layers of shell companies, public corruption cases needing wiretaps and cooperators, and cold cases with degraded evidence can take years to develop before a prosecutor feels ready to file.
Forensic delays. DNA analysis, toxicology, ballistics, and digital forensics each have their own turnaround times, and those times stretch when crime labs are overwhelmed. A case that hinges on a single forensic result can stall entirely while it waits in the queue.
Witnesses and victims. Witnesses who are hard to find or reluctant to speak with investigators create obvious delays. A common misconception: that a victim can decline to “press charges” and end a case. The decision belongs to the prosecutor, not the victim. Prosecutors regularly proceed without a cooperative victim when independent evidence like body camera footage, 911 recordings, or medical records carries the case. A reluctant victim still weakens the prosecution, though, which can lead to reduced charges, delays while alternative evidence gets built, or eventually a decision not to file.
Caseload. Detectives and prosecutors work with finite hours. In busy urban jurisdictions, the review bottleneck alone can add weeks or months to the charging timeline for lower-priority offenses.
The Outer Limit: Statute of Limitations
The statute of limitations is the final boundary. Once it passes, the government’s right to prosecute is gone regardless of how strong the evidence is. These limits exist to protect people from defending against stale allegations after evidence has degraded and memories have faded.
Under federal law, the general statute of limitations for non-capital offenses is five years from the date the crime was committed.6Office of the Law Revision Counsel. 18 USC 3282 – Offenses Not Capital That covers both federal felonies and federal misdemeanors unless a specific statute says otherwise. Some offenses carry longer periods: certain tax crimes have six-year deadlines, and major wartime fraud against the government can be prosecuted up to five years after hostilities end.
For crimes punishable by death, there’s no statute of limitations at all. An indictment can be returned any time, no matter how many decades have passed.7Office of the Law Revision Counsel. 18 USC 3281 – Capital Offenses Most states follow a similar structure: no time limit on murder, other offenses ranging from one to ten years depending on severity, and state misdemeanors often on the shortest windows of one to three years.
When the Clock Pauses
The countdown isn’t always straightforward. Under federal law, the statute of limitations does not run against anyone “fleeing from justice.” Leaving the jurisdiction to avoid prosecution stops the clock until the suspect returns or is caught, so running doesn’t help — it just suspends the deadline.8Office of the Law Revision Counsel. 18 USC 3290 – Fugitives From Justice When DNA testing identifies a suspect in a federal felony, a new limitations period equal to the original one begins running from the date of identification, which is what allows prosecution of cold cases when forensic technology eventually catches up. A grand jury can also return a sealed indictment kept secret by court order; because it was filed before the deadline, it satisfies the statute even if the defendant doesn’t learn about it until much later.
One more wrinkle: the clock generally starts when the crime is completed, not when it’s discovered. Ongoing conspiracies keep the clock from starting until the last act in furtherance of the conspiracy, and certain concealment-based crimes like hiding assets in bankruptcy toll until a triggering event.
What Happens Once Charges Are Filed
After the prosecutor files, the next step is an initial hearing, sometimes called an arraignment. You learn the specific charges, arrangements are made for an attorney if you don’t already have one, and the judge decides whether to release you pending trial or keep you detained.9U.S. Department of Justice. Initial Hearing / Arraignment You’ll enter a plea of guilty or not guilty. In federal cases, the Speedy Trial Act then gives the government 70 days from the indictment or your initial appearance, whichever is later, to bring the case to trial.