Habeas corpus is a legal rule that requires a prisoner be presented in court and that the arrester prove that there is proper cause for detaining the prisoner. The Writ of Habeas Corpus demands that requires a prisoner must go before the court to determine if there is lawful authority to detain the prisoner.Federal habeas corpus is a procedure under which a federal court may review the legality of an individual's incarceration. The Habeas Corpus petition claims the arrest, sentence, or trial violated constitutional law, making imprisonment unlawful. "Habeas corpus" is a Latin term meaning "bring us the body. The U.S. Supreme Court interprets the Constitution, which means it defines constitutional rights and violations in the cases it decides. The "Great Writ" of habeas corpus is a fundamental right in the Constitution that protects against unlawful and indefinite imprisonment. A Writ of Habeas Corpus is a civil proceeding that is available in both State and Federal Court to challenge the legality of imprisonment. Arrested in Arizona? Call Today for Help!