Habeas corpus is a writ that states that a person cannot be kept in prison unless they have first been brought before a court of law. A legal document that requires the addressee to produce in court a person in its custody and justify his or her imprisonment.This Chapter explains an important right—the writ of habeas corpus. This Chapter discusses how the writ of habeas corpus is applied in three states: Florida, New York, and Michigan. A writ of habeas corpus directs a person, usually a prison warden, to produce the prisoner and justify the prisoner's detention. If you are looking to file a Texas 11.07 Writ of Habeas Corpus application, post-convcition lawyer Sarah Durham is here to help. 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 is the remedy to be used when any person is restrained in his liberty. The writ of habeas corpus is the remedy to be used when any person is restrained in his liberty. A writ of habeas corpus is an order from a court to an official to produce an inmate.