
The Fifth Amendment to the U.S. Constitution, ratified in 1791, includes the Double Jeopardy Clause, which protects individuals from being prosecuted twice for the same crime. This clause was designed to safeguard Americans from oppressive government actions and ensure fairness and justice in the legal system. It covers criminal punishment and, in certain cases, civil penalties that are punitive in nature. The Supreme Court has interpreted and refined the scope of double jeopardy through landmark cases, such as United States v. Perez, which established an exception for retrials in cases of mistrials due to hung juries. The incorporation of double jeopardy protections into the Constitution reflects the Founding Fathers' caution against potential government abuse and their commitment to individual rights and due process.
| Characteristics | Values |
|---|---|
| Purpose | To protect an individual from being subjected to the hazards of trial and possible conviction more than once for an alleged offense |
| Application | Applies to both the federal and state governments |
| Exceptions | Retrials in cases of mistrials due to hung juries are permitted |
| Juvenile Court Proceedings | Applies to juvenile court proceedings that are formally civil |
| Civil Sanctions | May qualify as double jeopardy if they are punitive in nature |
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What You'll Learn

To protect against oppressive government actions
The Double Jeopardy Clause, part of the Fifth Amendment to the U.S. Constitution, was added to protect individuals from oppressive government actions. The Clause explicitly prohibits trying or punishing an individual twice for the same offence, stating that:
> " [N]or shall any person be subject for the same offence to be twice put in jeopardy of life or limb..."
The Clause was designed to protect individuals from the hazards of trial and possible conviction more than once for an alleged offence. It ensures fairness and justice in the legal system by preventing the government from abusing its power.
The Double Jeopardy Clause applies to both the federal and state governments through the incorporation doctrine following the case of Benton v. Maryland in 1969. This case involved John Dalmer Benton, who was retried for larceny and burglary after initially being acquitted of larceny but convicted of burglary. Benton argued that his retrial for larceny violated the double jeopardy clause, but the trial court denied this claim. The United States Supreme Court addressed a critical issue involving the double jeopardy clause of the Fifth Amendment, and the case had a significant impact on its interpretation.
The Clause also applies to civil sanctions that are punitive in nature, as seen in United States v. One Assortment of 89 Firearms, where the Supreme Court held that the prohibition on double jeopardy extends to civil sanctions that are punitive. Additionally, the Clause covers juvenile court proceedings, as in Breed v. Jones, where the Supreme Court decided that double jeopardy applies when an individual is tried as a juvenile and then again as an adult for the same offence.
The Double Jeopardy Clause is a crucial aspect of the Fifth Amendment, safeguarding individuals from oppressive government actions and ensuring fairness and justice in the legal system.
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To ensure fairness and justice in the legal system
The Double Jeopardy Clause, part of the Fifth Amendment to the U.S. Constitution, was added to ensure fairness and justice in the legal system. The Clause protects individuals from being prosecuted twice for the same crime, a concept that was first introduced in the New Hampshire Constitution of 1784, which stated that "no subject shall be liable to be tried, after an acquittal, for the same crime or offence". The Pennsylvania Declaration of Rights of 1790 included a similar provision, and the Fifth Amendment, ratified in 1791, later incorporated this idea into the U.S. Constitution.
The Double Jeopardy Clause is designed to safeguard individuals from the stress and potential prejudice of multiple trials and convictions for the same offence. It also prevents the government from abusing its power by repeatedly prosecuting individuals for the same crime. The Clause applies to both federal and state governments, and covers criminal punishment, although in certain cases, civil penalties may also be considered double jeopardy if they are punitive in nature.
The Supreme Court has provided further clarification on the scope of the Double Jeopardy Clause through various cases. For example, in Breed v. Jones, the Court held that the Clause applies when an individual is tried as a juvenile and then again as an adult for the same offence. In United States v. One Assortment of 89 Firearms, the Court determined that the prohibition on double jeopardy extends to civil sanctions that are punitive. The Court has also addressed exceptions to the Clause, such as in United States v. Perez, which permitted retrial in cases of mistrials due to hung juries.
The Double Jeopardy Clause is a crucial aspect of the U.S. legal system, providing protections against oppressive governmental actions and ensuring fairness and justice for all individuals. It has been a significant factor in shaping criminal law and procedure, influencing the interpretation of statutes and the conduct of trials. By prohibiting double jeopardy, the Clause helps to maintain the integrity of the justice system and protect the rights of the accused.
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To prevent double jeopardy in juvenile court proceedings
The Fifth Amendment to the United States Constitution contains the Double Jeopardy Clause, which protects individuals from being prosecuted twice for the same offence. This clause applies to both federal and state governments. The Double Jeopardy Clause is also relevant in juvenile court proceedings, as established in the case of Breed v. Jones (1975). In this case, the Supreme Court decided that double jeopardy applies when an individual is tried as a juvenile and then again as an adult for the same crime. This is because juvenile courts have the discretion to try a minor as an adult. Therefore, if a juvenile court chooses to try an individual as a juvenile, another trial court cannot subsequently try the same individual as an adult for the same offence.
The Double Jeopardy Clause is designed to prevent individuals from facing criminal prosecution multiple times for the same offence, which can save governments time and money and prevent individuals' lives from being consumed by legal proceedings. The clause applies when the same conduct violates different statutes, and the two crimes are considered the "same offence" for double jeopardy purposes. This distinction was made in the case of Blockburger v. United States, where the Supreme Court ruled that "where the same act or transaction constitutes a violation of two distinct statutory provisions, the test to be applied to determine whether there are two offences or only one, is whether each provision requires proof of an additional fact which the other does not".
In the context of juvenile court proceedings, the Double Jeopardy Clause ensures that juveniles are not subjected to multiple trials and punishments for the same offence. This is particularly important given the unique nature of juvenile justice and the recognition that children are not miniature adults. Research has also found that Black youth receive harsher court outcomes compared to similarly situated Whites, highlighting the need for a more just and effective justice system for youth.
To further illustrate the application of the Double Jeopardy Clause in juvenile court proceedings, consider the following example: A juvenile is tried in a delinquency proceeding and found guilty of a criminal offence. This individual cannot be prosecuted again for the same offence, even if they are subsequently tried as an adult, as per the protection against double jeopardy. This was affirmed in Roper v. Simmons (2005), where the Supreme Court held that a juvenile adjudicated in a delinquency proceeding is put "in jeopardy," barring prosecution for the same offence to avoid violating the Double Jeopardy Clause.
In summary, the Double Jeopardy Clause of the Fifth Amendment, including its application in juvenile court proceedings, serves to protect individuals from multiple prosecutions and punishments for the same offence. This protection extends to juveniles, ensuring that their legal rights are upheld and that they are not unfairly tried as adults for the same crime.
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To allow for retrials in cases of mistrials due to hung juries
The Fifth Amendment to the U.S. Constitution, ratified in 1791 as part of the Bill of Rights, includes the Double Jeopardy Clause, which states:
> " [N]or shall any person be subject for the same offence to be twice put in jeopardy of life or limb..."
The Clause is designed to protect individuals from being subjected to the hazards of trial and possible conviction more than once for an alleged offence. In other words, it prevents an individual from being prosecuted twice for the same crime.
However, there are exceptions to the principle of double jeopardy. One such exception is the case of United States v. Perez, which permitted retrials in cases of mistrials due to hung juries. This ruling recognised the practical reality that juries may fail to reach unanimous verdicts, requiring new trials to ensure justice. The decision also underscored the discretion of courts in managing trials and highlighted the balance between protecting constitutional rights and upholding justice.
In the Perez case, the Supreme Court held that the discharge of a jury without the defendant's or the prosecution's consent did not constitute a bar to any future trial for the same offence. Justice Joseph Story emphasised that courts have the authority to discharge a jury when, in their judgment, there is a manifest necessity for the act or when the ends of public justice would otherwise be defeated. This exception to double jeopardy allows for retrials in cases of mistrials due to hung juries, ensuring that justice can be served through new trials when juries fail to reach a unanimous verdict.
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To address the issue of successive prosecutions by two states
The Double Jeopardy Clause of the Fifth Amendment of the U.S. Constitution protects individuals from being prosecuted twice for the same crime. The Clause was designed to safeguard individuals from the hazards of trial and possible conviction more than once for an alleged offence. The Clause states that no person shall be subject for the same offence to be twice put in "jeopardy of life or limb".
The application of the Clause has been interpreted in various Supreme Court cases, including Breed v. Jones, United States v. One Assortment of 89 Firearms, and United States v. Halper. In these cases, the Court determined that the Clause applies to civil sanctions that are punitive in nature and juvenile court proceedings.
The Double Jeopardy Clause also addresses the issue of successive prosecutions by two states for the same conduct. The "'dual sovereignty' doctrine permits successive prosecutions by two states for the same conduct. This doctrine recognises that different units of government within a federal system may have overlapping jurisdictions, allowing a person's conduct to violate the laws of more than one unit.
The Supreme Court case of United States v. Lanza affirmed this principle. In that case, a person was convicted in federal court after previously being convicted in a state court for the same actions. The Court upheld the conviction, acknowledging the existence of "two sovereignties, deriving power from different sources, capable of dealing with the same subject-matter within the same territory."
The Double Jeopardy Clause, therefore, serves as a safeguard against successive prosecutions by two states, ensuring that individuals are not subjected to multiple trials and convictions for the same offence.
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Frequently asked questions
The Double Jeopardy Clause is part of the Fifth Amendment to the U.S. Constitution, which was ratified in 1791 as part of the Bill of Rights.
The clause states that no person shall be subject for the same offence to be twice put in jeopardy of life or limb. In other words, it protects against being prosecuted twice for the same crime.
The Double Jeopardy Clause was added to the Constitution to protect individuals from oppressive government actions and ensure fairness and justice in the legal system. The Founding Fathers were cautious of potential government abuse and wanted to prevent individuals from being subjected to the hazards of trial and possible conviction more than once for an alleged offence.
In the case of Breed v. Jones, the Supreme Court decided that double jeopardy applies when an individual is tried as a juvenile and then later tried as an adult for the same offence. In the case of United States v. One Assortment of 89 Firearms, the Supreme Court held that the prohibition on double jeopardy extends to civil sanctions that are punitive in nature.
Yes, there are some exceptions to the Double Jeopardy Clause. For example, in United States v. Perez, the Supreme Court permitted retrial in cases of mistrials due to hung juries. Additionally, the dual sovereignty doctrine permits successive prosecutions by two states for the same conduct or by a federal prosecution after a conviction in an Indian tribal court for an offence stemming from the same conduct.

























