Miranda v Arizona is a landmark 1966 Supreme Court case about the rights of people questioned by police while in custody. The case matters because it connects police procedure to the Fifth Amendment protection against self-incrimination and the Sixth Amendment right to an attorney. The Court ruled that suspects must be clearly informed of certain rights before custodial interrogation.
This decision changed everyday policing across the United States.
Key Facts
- Miranda v Arizona was decided by the U.S. Supreme Court in 1966.
- The Supreme Court ruled 5 to 4 in favor of Ernesto Miranda.
- The Fifth Amendment protects people from being forced to incriminate themselves.
- The Sixth Amendment protects the right to have the assistance of a lawyer.
- Miranda warnings are required before custodial interrogation, not every time police speak to someone.
- A typical warning includes: You have the right to remain silent, anything you say can be used against you, you have the right to an attorney, and an attorney will be provided if you cannot afford one.
Vocabulary
- Miranda Warning
- A statement police must give to suspects in custody before interrogation to inform them of their constitutional rights.
- Custodial Interrogation
- Questioning by police after a person has been taken into custody or is not free to leave.
- Self-Incrimination
- The act of saying something that could help prove that you committed a crime.
- Fifth Amendment
- The constitutional amendment that protects people from being forced to testify against themselves in criminal cases.
- Sixth Amendment
- The constitutional amendment that gives criminal defendants the right to legal counsel and a fair trial.
Common Mistakes to Avoid
- Thinking Miranda rights must be read at every arrest. This is wrong because the warning is required before custodial interrogation, not necessarily at the moment of arrest.
- Thinking a case is automatically dismissed if Miranda warnings are not given. This is wrong because the usual result is that certain statements may be excluded, while other evidence may still be used.
- Thinking Miranda rights protect only guilty people. This is wrong because the rights protect everyone from forced confession and unfair questioning.
- Thinking silence always counts as a clear request for a lawyer. This is wrong because suspects generally must clearly state that they want an attorney or that they are invoking the right to remain silent.
Practice Questions
- 1 Miranda v Arizona was decided in 1966. If the current year is 2026, how many years have passed since the decision?
- 2 The Supreme Court vote in Miranda v Arizona was 5 to 4. What fraction of the 9 justices were in the majority, and what percentage is that to the nearest whole percent?
- 3 A suspect is stopped on the street and voluntarily answers a few basic questions, but later is taken to a police station and questioned about a crime while not free to leave. Explain when Miranda warnings become necessary and why.