An application for a Writ of Habeas Corpus is filed when a person seeks relief from unlawful detention or imprisonment. Include all of your grounds for relief and all of the facts that support each ground for relief in this petition.I am the Petitioner in this Petition for Writ of Habeas Corpus. And filed a Petition for Writ of Habeas Corpus in the Court of. Appeal, First Appellate District. In 2001, the Petitioner was convicted in state court (Florida) of first-degree murder, burglary, and aggravated battery and sentenced to life imprisonment. In. The appellate department affirmed his conviction and Masching filed a petition for a writ of habeas corpus with this court. (The district clerk of the county of conviction will fill in this blank.) IN THE COURT OF CRIMINAL APPEALS OF TEXAS. The required application for a person currently incarcerated in TDCJ to file for a writ of habeas corpus under Texas Code of Criminal Procedure, Article 11.07. You can file a Writ of Habeas Corpus on your own, and a lot of convicted defendants do try.