Who Should Use This Form. You should use this form if.Habeas Corpus, A writ employed to bring a person before a court, most frequently to ensure that the party's imprisonment or detention is not illegal. The Florida Constitution authorizes the following extraordinary writs: prohibition, mandamus, quo warranto, habeas corpus, and certiorari. Should you file a writ of habeas corpus or a 3.850 motion after an unjust conviction? Find out which is right for you from from a Florida defense attorney. Explain the grounds for the petition: You will need to explain why you are seeking a writ of habeas corpus. You have the right to file a Petition for Writ of Habeas Corpus or a Petition for Redress of Grievance. (b) Petitions for writs seeking certiorari, habeas corpus, mandamus, quo warranto, or prohibition filed with the Clerk, including any petition arising out of a. It tests the legality of a detention or a restraint and the goal is to use it really almost i guess it's an emergency basis.