Roughly 8.5% of federal criminal defendants had their cases dismissed in fiscal year 2023, according to the Bureau of Justice Statistics.1Bureau of Justice Statistics. Federal Justice Statistics, 2023 There is no equivalent figure for the country as a whole. The question of what percentage of criminal cases get dismissed has no single clean answer because the United States has thousands of separate court systems, each tracking outcomes its own way, and most criminal cases are handled in state and local courts that don’t feed into a central database. What is clear is that dismissals happen far more often than trials, and they happen for a predictable set of reasons.
What a Dismissal Actually Is
A dismissal ends a criminal case without a conviction. The charges stop, and prosecution halts. It can happen before trial, during trial, or after a conviction is overturned on appeal, and it can be initiated by either the prosecutor or the judge, though prosecutors drive most of them. Under federal rules, the government needs the court’s permission to dismiss, and cannot dismiss mid-trial without the defendant’s consent. A judge can dismiss independently when there’s unnecessary delay in bringing charges or starting trial.2Legal Information Institute. Federal Rules of Criminal Procedure Rule 48 – Dismissal
Not every dismissal is final. A dismissal “with prejudice” permanently closes the case; charges can’t be refiled, and the practical effect resembles an acquittal. This usually happens after constitutional violations, destroyed evidence, or once jeopardy has attached. A dismissal “without prejudice” leaves the door open for the prosecution to refile within the statute of limitations, and this is the more common type. A related concept, “nolle prosequi,” is a formal declination by the prosecutor; the case stops but can potentially be revived.
What the Federal Data Shows
Federal court outcomes are tracked for every defendant whose case is resolved in U.S. district courts, so this is the one slice of the system where the numbers are solid. In fiscal year 2023, about 8.5% of federal defendants had their cases dismissed. Roughly 88.9% pleaded guilty. Trials accounted for a small sliver of what remained.1Bureau of Justice Statistics. Federal Justice Statistics, 2023
The federal system is overwhelmingly a plea-bargaining system. Among defendants actually sentenced in fiscal year 2024, 97% had pleaded guilty.3United States Sentencing Commission. 2024 Annual Report For the roughly 9 in 10 federal defendants who don’t go to trial, the case ends in either a plea or a dismissal.
Why There Is No Reliable Nationwide Number
State and local courts handle the overwhelming majority of criminal cases, and there is no centralized database tracking how all of those cases end. Each jurisdiction defines “dismissal” slightly differently and records outcomes its own way. Some prosecutors’ offices publish their own dismissal rates, but comparing across offices is unreliable because of definitional inconsistencies. When a defendant pleads guilty to one count and the other three are dropped, whether those dropped counts count as “dismissals” depends entirely on local coding practices.
Any claim about a national criminal case dismissal rate is therefore either federal data wearing a national label or an estimate that should be treated with skepticism. What researchers consistently find is that dismissal rates vary enormously by offense type, by jurisdiction, and even by individual prosecutor.
Why Cases Get Dismissed
Weak or Suppressed Evidence
The most common reason is simple: the evidence isn’t strong enough to prove guilt beyond a reasonable doubt. Surveillance footage turns out to be ambiguous. Forensic results come back inconclusive. The physical evidence doesn’t actually connect the defendant to the crime. A judge can dismiss for insufficient evidence even before the defense presents its side when the prosecution clearly can’t meet its burden.4Legal Information Institute. Insufficient Evidence
Illegally obtained evidence is a related problem. A search without a valid warrant or probable cause, or a coerced confession, can lead to suppression. Once the key evidence is thrown out, what’s left often can’t carry the case, and the prosecution dismisses rather than lose at trial.
Procedural and Speedy Trial Violations
The federal Speedy Trial Act requires that an indictment or information be filed within 30 days of arrest and that trial begin within 70 days after charges are filed.5Office of the Law Revision Counsel. 18 U.S. Code 3161 – Time Limits and Exclusions When the government misses those deadlines, the defendant can move to dismiss, and the court decides whether the dismissal is with or without prejudice based on the seriousness of the offense, the cause of the delay, and the impact on the justice system.6GovInfo. 18 U.S. Code 3162 – Sanctions States have their own speedy trial rules with different time limits.
Prosecutors are also constitutionally required to turn over favorable evidence to the defense. A failure to disclose this material, known as a Brady violation, can result in dismissal or in a conviction being reversed on appeal.7Legal Information Institute. Brady Rule Chain-of-custody failures, defective charging documents, and other procedural lapses can end a case as well.
Witness Problems
Many prosecutions, especially in domestic violence and assault cases, depend on a single witness. When that witness refuses to cooperate, recants, or disappears, the case can collapse. A reluctant victim in a domestic violence case is one of the most common reasons those charges get dropped. A witness caught lying, or one with their own criminal exposure, can similarly gut a case.
Prosecutorial Discretion and Plea Bargains
Prosecutors decide which cases to pursue and which to drop, and this discretion is arguably the single biggest driver of dismissal rates. Charges may be dismissed because the offense is minor, the defendant has no prior record, the victim doesn’t want to proceed, or the office’s resources are better spent elsewhere.
Plea bargaining also generates a large volume of dismissals. In count bargaining, a defendant pleads guilty to one or some charges in exchange for the prosecution dropping the rest. A defendant originally charged with armed robbery, assault, and weapons possession might plead guilty to robbery alone while the other counts are dismissed. Whether those dropped counts appear in dismissal statistics depends on local record-keeping, which is one reason aggregate numbers can mislead.
Diversion Programs
Pretrial diversion routes certain defendants, often first-time offenders or people charged with drug-related offenses, into treatment, community service, or supervision instead of standard prosecution. Those who successfully complete a diversion program may have their charges dismissed or reduced.8United States Department of Justice. Justice Manual 9-22.000 – Pretrial Diversion Program Diversion is more commonly available for misdemeanors and nonviolent offenses, and in jurisdictions that invest heavily in it, dismissal rates for eligible offenses run higher.
Why Rates Differ From One Court to the Next
Local prosecutorial philosophy matters enormously. Some offices screen cases carefully at intake and reject weak ones before filing, which produces fewer later dismissals. Others file broadly and sort things out as cases progress, producing higher dismissal rates but lower rejection rates. Neither approach is inherently better; they shift where in the process weak cases get filtered out.
Offense type matters too. Misdemeanors tend to have higher dismissal rates than felonies. The reasons are intuitive: minor cases get less prosecutorial attention, witnesses are less motivated to follow through, and diversion is more readily available. Violent felonies, where the stakes are highest, draw the most resources and dismiss less often. Drug cases and low-level property crimes are more likely to be dismissed or diverted.
Resources also push the numbers. Overloaded courts and understaffed prosecutor offices sometimes dismiss cases because they can’t process them all before speedy trial deadlines expire. Those dismissals don’t reflect anything about the strength of the evidence; they’re a byproduct of capacity.
What a Dismissal Leaves Behind
A dismissed case doesn’t vanish from your record. The arrest and the filed charges typically remain visible in court records and criminal history databases. You were never convicted, but a background check can still turn up both.
Under the Fair Credit Reporting Act, consumer reporting agencies generally cannot include arrest records more than seven years old that did not result in a conviction.9Office of the Law Revision Counsel. 15 U.S. Code 1681c – Requirements Relating to Information Contained in Consumer Reports Within that window, a dismissed charge can appear on a commercial background report. Some states have stricter rules that bar reporting non-conviction records altogether. The EEOC has issued guidance that an arrest record alone is not a valid basis for denying employment, and blanket rejection policies based on arrests that didn’t lead to convictions raise Title VII concerns.10EEOC. Enforcement Guidance on the Consideration of Arrest and Conviction Records in Employment Decisions
Removing a dismissed case from your record generally requires petitioning for expungement or sealing. Most states allow some form of record clearing for dismissed charges, but eligibility, waiting periods, and procedures vary. Filing fees typically range from nothing to around $150, with attorney costs on top if you hire help.
Dismissal also doesn’t make defendants financially whole. Private attorney fees are the biggest loss, and most jurisdictions don’t reimburse them after a dismissal. Cash bail posted directly with the court is normally returned, but a bail bond premium (commonly 8% to 10% of the total bail amount) is a nonrefundable service fee. Defendants who sat in pretrial detention because they couldn’t post bail face lost wages and sometimes lost jobs that a later dismissal doesn’t undo.