
The case of Miranda vs. Arizona (1966) is a landmark ruling in American criminal law, as it established the requirement for the Miranda rights during arrests. Ernesto Arturo Miranda was arrested in 1963 on charges of rape and kidnapping and interrogated for two hours without being informed of his constitutional rights to an attorney and against self-incrimination. Despite signing a written confession, Miranda appealed, arguing that his ignorance of his rights made the confession involuntary. The U.S. Supreme Court ruled in Miranda's favor, holding that his constitutional rights under the 5th and 6th Amendments had been violated. This decision established the requirement for law enforcement to inform criminal suspects of their Miranda rights, which include the right to remain silent and the right to an attorney.
| Characteristics | Values |
|---|---|
| Date | March 13, 1963 (Miranda's arrest) |
| June 13, 1966 (Supreme Court decision) | |
| Petitioner | Ernesto Miranda |
| Respondent | State of Arizona |
| Issue | Whether Miranda's constitutional rights were violated during interrogation |
| Constitutional Principles | Fifth Amendment: right against self-incrimination, right to consult with a lawyer |
| Sixth Amendment: right to assistance of an attorney during criminal proceedings | |
| Holding | Miranda's constitutional rights were violated; confession obtained without informing him of his rights was inadmissible |
| Decision | 5-4 decision in favor of Miranda; conviction overturned and case remanded for retrial |
| Impact | "Miranda warning" became part of routine police procedure and popular culture |
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What You'll Learn

The Fifth Amendment
The case of Miranda vs. Arizona (1966) is a landmark decision by the U.S. Supreme Court, which ruled that law enforcement must warn a person of their constitutional rights before interrogating them. This case centred around Ernesto Arturo Miranda, a young Mexican-American man arrested in 1963 based on circumstantial evidence of kidnapping and rape. Miranda was interrogated for two hours without being informed of his constitutional rights or provided with an attorney. He signed a written confession, affirming his knowledge of these rights and admitting to the crimes.
The Supreme Court of Arizona initially held that Miranda's constitutional rights were not violated, and he was convicted and sentenced to prison. However, the U.S. Supreme Court later overturned this decision, ruling in Miranda's favour. This ruling was based on the Fifth Amendment, which protects individuals from self-incrimination and requires law enforcement to inform detainees of their rights. The Court clarified that the government cannot use a person's statements made during an interrogation while in police custody as evidence unless they can prove that the individual was informed of their rights and voluntarily waived them.
The Miranda vs. Arizona decision has been viewed as a radical change in American criminal law, as it expanded the interpretation of the Fifth Amendment beyond protection against formal types of compulsion to confess. The ruling emphasised that the rights against self-incrimination and to an attorney are essential to protecting individuals' constitutional rights during criminal proceedings. This decision set a precedent for ensuring that individuals accused of crimes are aware of their rights and that law enforcement adheres to constitutional standards during interrogations.
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Self-incrimination
The case of Miranda vs. Arizona (1966) is a landmark decision by the U.S. Supreme Court, which ruled that law enforcement must warn a person of their constitutional rights before interrogating them. This includes the right to remain silent and the right to have a lawyer present during questioning. These rights are now commonly known as "Miranda rights" or the "Miranda warning".
Ernesto Arturo Miranda was arrested in 1963 based on circumstantial evidence of kidnapping and rape. During his interrogation, Miranda was not informed of his constitutional rights, nor was he able to afford a lawyer. After a two-hour interrogation, he signed a written confession, affirming that he had full knowledge of his legal rights. Miranda was found guilty and sentenced to 20 to 30 years in prison on each count.
Miranda's lawyer, Alvin Moore, appealed the case to the Arizona Supreme Court, arguing that Miranda's constitutional rights had been violated. The Supreme Court of Arizona upheld the conviction, stating that Miranda's rights had not been violated in obtaining the confession. However, on June 13, 1966, the U.S. Supreme Court overturned the decision in a 5-4 vote, ruling that Miranda's confession was obtained under circumstances that did not meet constitutional standards.
The Supreme Court held that under the Fifth Amendment, individuals have the right against self-incrimination. This means that a person cannot be compelled to be a witness against themselves and that their statements made during police custody cannot be used as evidence at their criminal trial unless they were informed of their rights and voluntarily waived them. The Court also cited the Sixth Amendment, which guarantees the right to assistance by an attorney during criminal proceedings.
The Miranda vs. Arizona decision had a significant impact on law enforcement in the United States, making the Miranda warning a routine part of police procedure to ensure that suspects are informed of their rights. The case established important protections for individuals accused of crimes, ensuring that their constitutional rights are upheld during the criminal justice process.
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Right to legal counsel
The case of Miranda vs. Arizona (1966) is a landmark decision by the U.S. Supreme Court, which ruled that law enforcement must warn a person of their constitutional rights before interrogating them. This case centred around two parts of the U.S. Constitution and the rights of arrested individuals.
Firstly, the Fifth Amendment states that people cannot be forced to be a witness against themselves, or to give evidence that would incriminate themselves. This was traditionally understood to protect Americans against formal types of compulsion to confess, such as threats of contempt of court.
Secondly, the Sixth Amendment gives everyone the right to assistance by an attorney when accused of a crime. This means that a suspect must be informed of their right to consult with a lawyer before and during questioning, and that they voluntarily waive this right before answering questions.
The case of Miranda vs. Arizona (1966) involved Ernesto Arturo Miranda, a young Mexican-American man who was arrested in 1963 based on circumstantial evidence of kidnapping and rape. After a two-hour interrogation, during which he was not informed of his constitutional rights, Miranda signed a written confession. This confession was later used as evidence in his trial, and he was convicted and sentenced to 20 to 30 years in prison.
Miranda's lawyer appealed the case, arguing that his client's constitutional rights had been violated because he had not been informed of his right to an attorney during questioning. The Supreme Court of Arizona upheld the conviction, affirming that Miranda's rights had not been violated. However, on June 13, 1966, the U.S. Supreme Court overturned the conviction and remanded the case back to Arizona for a retrial.
The Supreme Court's decision in Miranda vs. Arizona established the requirement for law enforcement to inform arrested individuals of their rights, which became known as "Miranda rights". These rights include the right to remain silent, the right to have a lawyer present during questioning, and the right to be informed of these rights before interrogation. The case had a significant impact on law enforcement in the United States, making the "Miranda warning" a routine part of police procedure.
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Police interrogation
In 1963, Ernesto Arturo Miranda was arrested and charged with kidnapping and rape. After a police lineup, Miranda was interrogated for two hours without being informed of his constitutional rights. He signed a written confession, affirming his knowledge of his rights and admitting to the crimes.
Miranda v. Arizona was a landmark decision by the U.S. Supreme Court in 1966 that ruled law enforcement must warn a person of their constitutional rights before interrogating them. Specifically, the Court held that under the Fifth Amendment, the government cannot use a person's statements made in response to an interrogation while in police custody as evidence at their criminal trial unless they can show that the person was informed of their rights. These rights include the right to consult with a lawyer before and during questioning and the right against self-incrimination. The Court also found that Miranda's Sixth Amendment right to assistance by an attorney had been violated.
The Supreme Court's decision in Miranda v. Arizona had a significant impact on law enforcement in the United States, making the Miranda warning a routine part of police procedure to ensure that suspects are informed of their rights. The case established the requirement for police to inform arrested individuals of their Miranda rights, which include the right to remain silent and the right to an attorney.
The Miranda warning quickly entered popular culture, becoming a well-known legal phrase. The case has been viewed as a radical change in American criminal law, as it expanded the interpretation of the Fifth Amendment beyond traditional protections against formal types of compulsion to confess.
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Voluntarily waiving rights
The case of Miranda vs. Arizona (1966) is a landmark decision by the U.S. Supreme Court, which ruled that law enforcement must warn a person of their constitutional rights before interrogation, or their statements cannot be used as evidence at their trial. This ruling was based on the Fifth and Sixth Amendments to the U.S. Constitution. The Fifth Amendment protects individuals from self-incrimination, while the Sixth Amendment guarantees the right to an attorney when accused of a crime.
Ernesto Arturo Miranda was arrested in 1963 based on circumstantial evidence of kidnapping and rape. During his interrogation, he was not informed of his constitutional rights, including his right to an attorney and his right against self-incrimination. Miranda confessed to the crimes and signed a written confession, which was later used as evidence in his trial.
The Supreme Court of Arizona initially held that Miranda's constitutional rights were not violated, and his conviction was affirmed. However, the U.S. Supreme Court overturned this decision and remanded the case for retrial. The Court ruled that Miranda's confession was obtained without him being informed of his rights, and therefore, his constitutional rights were violated.
The concept of "voluntarily waiving rights" is crucial in this case. The U.S. Supreme Court held that a person's statements made during police custody cannot be used as evidence unless it is proven that the individual voluntarily waived their rights. In Miranda's case, he signed a written confession stating that it was made "voluntarily, without threats or promises of immunity, and with full knowledge of my legal rights." However, the Court found that Miranda was not properly informed of his rights, and therefore, his waiver was not truly voluntary.
The impact of the Miranda vs. Arizona decision has been significant, leading to the creation of the "`Miranda warning`" as a standard part of police procedure. This warning ensures that suspects are informed of their rights, now commonly known as "Miranda rights." The case has been viewed as a radical change in American criminal law, emphasising the importance of protecting the rights of individuals during the interrogation process.
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Frequently asked questions
The issue addressed in Miranda vs. Arizona was whether law enforcement must warn a person of their constitutional rights before interrogating them.
The U.S. Supreme Court ruled in a 5-4 decision that law enforcement must inform individuals of their rights to an attorney and against self-incrimination before interrogating them. The Court held that under the Fifth and Sixth Amendments of the U.S. Constitution, any statements made by a person in response to an interrogation while in police custody cannot be used as evidence at their criminal trial unless they were informed of these rights and voluntarily waived them.
The ruling in Miranda vs. Arizona had a significant impact on law enforcement in the United States, leading to the creation of the "Miranda warning" or "Miranda rights," which became part of routine police procedure to ensure that suspects are informed of their constitutional rights.

























