The privilege of the writ of habeas corpus shall not be suspended, unless when in the case of rebellion or invasion the public safety may require it. Habeas Corpus, in the Federal Court, is a petition that claims that you are being detained against your US constitutional rights.A Writ of Habeas Corpus is a civil proceeding that is available in both State and Federal Court to challenge the legality of imprisonment. Habeas corpus, in other words, is a petition that asks the court to completely dismiss the charges against you over the Prosecutor's objection. A writ of habeas corpus is used to bring a prisoner or other detainee (e.g. May be made to the court for a writ of habeas corpus and testificandum. The following manual is designed to help you understand the workings of the Supreme Court of Pennsylvania and to address some of the most. Put simply, habeas corpus is a writ (petition) that can be used in a narrow set of circumstances to bring the case of a state prisoner. The "Great Writ" of habeas corpus is a fundamental right in the Constitution that protects against unlawful and indefinite imprisonment. Latin, meaning "you have the body.