Which Supreme Court case established the requirement of the Miranda warning?

The requirement of the Miranda warning was established by the Supreme Court case Miranda v Arizona. This landmark decision arose from the circumstances of Ernesto Miranda, who was arrested and interrogated by police without being informed of his rights, leading to a confession that was used against him in court. The Supreme Court ruled that in order to protect an individual's Fifth Amendment right against self-incrimination, law enforcement officials must inform suspects of their rights to remain silent and to have an attorney present during questioning. This ruling emphasizes the importance of safeguarding personal freedoms and ensuring that individuals are aware of their rights when they are in police custody. The Miranda warning thus serves as a critical component in criminal procedure to ensure fair treatment under the law.