An Informal Brief (Areas and Sec. 2255 Cases) is a document used to summarize the facts of a case and provide legal arguments in support of a petitioner's claims. The document is typically used when a petitioner is challenging the legality of their detention or conviction in either a habeas corpus petition or a motion under 28 U.S.C. § 2255. An informal brief is typically organized in an outline format, with the petitioner's claims and arguments presented in a concise and logical manner. The two main types of Informal Brief (Areas and Sec. 2255 Cases) are habeas corpus petitions and motions under 28 U.S.C. § 2255. A habeas corpus petition is a request to a court to determine whether a petitioner's detention or conviction is lawful. A motion under 28 U.S.C. § 2255 is a request for relief from a conviction or sentence based on a violation of a federal law or constitutional right. In both types of Informal Brief (Areas and Sec. 2255 Cases), the petitioner must provide evidence to support their claims and arguments. This may include relevant case law, statutes, and other legal documents. The document should include a clear statement of the petitioner's claims and arguments, a summary of the facts of the case, and a conclusion that summarizes the petitioner's position.