Double jeopardy applies to all crimes, from petty misdemeanors to capital felonies, but the Fifth Amendment’s protection has significant exceptions that let the government prosecute or punish you a second time in situations most people assume are off-limits. The harder questions aren’t whether the clause covers your offense — it does — but what counts as the “same offense,” when the protection actually begins, and which second prosecutions slip through on an exception.
What the Clause Protects Against
The Fifth Amendment says no person shall “be subject for the same offence to be twice put in jeopardy of life or limb.”1Constitution Annotated. Amdt5.3.1 Overview of Double Jeopardy Clause The “life or limb” phrasing is historical; courts have never limited the protection to capital or corporal cases. It gives you three distinct guarantees:
- No second prosecution after an acquittal.
- No second prosecution after a conviction for the same offense.
- No multiple punishments for the same offense in a single proceeding.
The acquittal protection is the strongest of the three. Once a jury or judge finds you not guilty, that verdict stands even if damning new evidence surfaces the next day. The prosecution generally cannot appeal an acquittal.2Constitution Annotated. Amdt5.3.6.3 Acquittal by Trial Judge and Re-Prosecution A narrow exception exists where a trial judge lets a jury return a guilty verdict and then enters an acquittal; there a prosecution appeal is permitted, because reversal would simply reinstate the jury’s verdict rather than force a new trial.
Every Criminal Offense Qualifies
Felonies, misdemeanors, and petty offenses are all covered. What matters is whether the proceeding is criminal in nature, not the severity of the potential punishment. An acquittal on shoplifting bars reprosecution just as effectively as a not-guilty verdict in a homicide case.
Juvenile delinquency proceedings qualify too. In Breed v. Jones, the Supreme Court held that once a juvenile court begins hearing evidence as the trier of fact, jeopardy has attached. A juvenile who had already been through an adjudicatory hearing could not then be transferred to adult court for prosecution on the same charges.3Justia U.S. Supreme Court Center. Breed v. Jones, 421 U.S. 519
When Jeopardy Attaches
The protection doesn’t begin at arrest or indictment. A specific threshold has to be crossed, and prosecutors can dismiss and refile charges freely before it is.
- Jury trial: when the jury is selected and sworn.
- Bench trial: when the first witness is sworn and the judge starts hearing evidence.
- Plea agreement: when the court unconditionally accepts the plea.
- Juvenile proceeding: when the court, sitting as trier of fact, begins hearing evidence.3Justia U.S. Supreme Court Center. Breed v. Jones, 421 U.S. 519
Before these moments, no constitutional bar prevents the state from charging you again. This is why early-stage dismissals and refilings don’t trigger a double jeopardy claim.
What Counts as the “Same Offense”
A single criminal act often violates multiple statutes. Rob a bank at gunpoint and you may have committed robbery, assault, and a firearms offense all at once. The clause bars a second prosecution for the “same offense,” so the practical question is which charges count as the same crime.
The Blockburger Test
In Blockburger v. United States, the Supreme Court set the rule: two charges are different offenses if each one requires proof of at least one element the other does not.4Legal Information Institute. Blockburger v. United States, 284 U.S. 299 Robbery requires taking property by force; assault requires causing bodily harm. Each has an element the other lacks, so the government can prosecute both.
Because legislatures tend to draft criminal statutes with distinct elements, the Blockburger test usually lets prosecutors stack charges from a single incident.
Lesser Included Offenses
The test cuts the other direction when one crime is fully contained within another. If every element of joyriding is also an element of auto theft, a conviction for joyriding bars a later prosecution for stealing the same car — the two are the “same offense.”5Legal Information Institute. Successive Prosecutions for Same Offense and Double Jeopardy The same logic has barred a separate robbery prosecution after a felony murder conviction where the robbery was the underlying felony.
The Dual Sovereignty Exception
The largest gap in the protection is the dual sovereignty doctrine. The same conduct can produce two prosecutions when different governments bring the charges, because each sovereign has its own laws and its own authority to enforce them.
Federal and State Prosecutions
The Supreme Court reaffirmed this rule in Gamble v. United States, holding that an “offense” is defined by a particular sovereign’s law, so two sovereigns means two offenses.6Legal Information Institute. Gamble v. United States, 588 U.S. 169 The result shows up in civil rights, firearms, and drug cases where a state outcome is followed by a federal indictment on the same facts under a different statute.
Two States
In Heath v. Alabama, the Court applied the same reasoning to prosecutions by two different states, each drawing its sovereign power independently. A kidnapping that crosses a state line can be prosecuted on both sides of it.
Tribal Courts
Native American tribes are also recognized as separate sovereigns. In United States v. Lara, the Supreme Court held that a tribe prosecutes under its own inherent authority, so a tribal prosecution does not bar a later federal prosecution for the same conduct.7Legal Information Institute. United States v. Lara
Military Courts Are Not Separate
Military courts, by contrast, are not a separate sovereign from civilian federal courts. A service member acquitted in a civilian federal prosecution cannot then be tried by court-martial for the same offense, because both systems draw authority from the same federal government.8United States Court of Appeals for the Armed Forces. Core Criminal Law Subjects – Defenses – Former Jeopardy
When a Retrial Is Allowed
Several situations let the government try a case again without violating the clause. The protection prevents repeated attempts at a resolved case; it does not guarantee the government only one try at reaching a resolution.
Hung Juries
When a jury cannot agree and the judge declares a mistrial, jeopardy is treated as continuing because the first trial never produced a verdict. The prosecution can present the case to a new jury.9Legal Information Institute. Hung Jury There is no constitutional cap on how many hung juries can precede a decision to drop the case, though practical pressure usually forces a reassessment after repeated failures.
Convictions Reversed on Appeal
If an appellate court throws out a conviction because of a trial error — improperly admitted evidence, flawed jury instructions, and the like — the government can generally retry the case. The reversal corrects a flawed process rather than giving prosecutors a second chance at the facts.
The exception matters: if the appellate court finds the evidence legally insufficient to support the conviction, retrial is barred. That kind of reversal functions as an acquittal, because the prosecution had its fair opportunity and failed to produce enough proof.
Defense-Requested Mistrials
When the defendant moves for a mistrial and wins it, retrial is usually permitted; the defendant chose to end the proceeding. In Oregon v. Kennedy, the Supreme Court recognized one exception: if the prosecutor deliberately provoked the mistrial request to engineer a do-over, double jeopardy bars a second trial.10Justia U.S. Supreme Court Center. Oregon v. Kennedy, 456 U.S. 667 The standard is narrow. Bad behavior isn’t enough; the defendant has to show specific intent to sabotage the trial.
Civil and Administrative Proceedings Fall Outside
Double jeopardy is strictly a criminal protection. A not-guilty verdict in criminal court does not block a civil lawsuit arising from the same event. A wrongful death case uses a lower burden of proof and seeks money damages rather than punishment, so it is not a second jeopardy.
Administrative actions sit outside the clause for the same reason. A driver can lose a license to a motor vehicle agency regardless of what happens in the DUI case, because courts treat license suspension as a regulatory safety measure rather than criminal punishment.
Civil asset forfeiture is the closest call. In Hudson v. United States, the Supreme Court held that courts should start with whether the legislature labeled the penalty as civil; only “the clearest proof” that it is so punitive in purpose or effect as to constitute criminal punishment will trigger the clause.11Legal Information Institute. Hudson v. United States In practice, most civil forfeitures and regulatory fines proceed alongside criminal cases without running into a double jeopardy problem.
How to Raise a Double Jeopardy Claim
If you believe a second prosecution is barred, the usual move is a motion to dismiss before the second trial begins. Timing is important, because the right the clause protects is the right not to be tried again, not just the right to escape a second conviction.
If the trial court denies that motion, you don’t have to sit through the second trial and raise the issue later. In Abney v. United States, the Supreme Court held that a pretrial denial of a double jeopardy motion is immediately appealable.12Justia U.S. Supreme Court Center. Abney v. United States, 431 U.S. 651 Most pretrial criminal rulings cannot be appealed until after a final judgment; double jeopardy claims are the rare exception because waiting would defeat the right itself.