A habeas corpus petition is used to argue that a person is being unlawfully held in custody, and should be released. Habeas Corpus - Latin for "You have the body.The "Great Writ" of habeas corpus is a fundamental right in the Constitution that protects against unlawful and indefinite imprisonment. Application And Writ Of Habeas Corpus Ad Prosequendum PDF, 204 KB. These files may not be suitable for users of assistive technology. Habeas corpus is a collateral attack on a judgment of imprisonment and is not a substitute for appeal. The writ of habeas corpus. § 17-1 (2019), with the "privilege of the writ of habeas corpus" not being subject to suspension. Inmate's assigned counsel shall complete Form AOC-G-112 for an Application and Writ of Habeas Corpus Ad Testificandum and follow the specific procedures. He was concurrently Duke and Prince-elector of Hanover in the Holy Roman Empire before becoming King of Hanover on 12 October 1814.