A writ of habeas corpus is a legal tool that a person can use to enforce a superior right of possession to a child. This legal action demands that a person who has your child must appear in court with the child and justify their actions.Notary fills out below. A writ of habeas corpus is a legal order that commands an individual or entity to produce a person who is allegedly being detained unlawfully. In child custody cases, parents or guardians can use the writ of habeas corpus to contest the legality of custody arrangements. This guide includes forms and instructions for a letter and affidavit to request that the court register an outofstate custody order in Texas. Org and find a legal form called "Answer" and deny all of her requests and ask the court to force her to prove her allegations. These instructions explain the steps to request a Writ of Habeas Corpus and an Order Returning a. Child. An application for a Writ of Habeas Corpus is filed when a person seeks relief from unlawful detention or imprisonment. This task includes forms for the habeas corpus proceedings as well as a writ of attachment.