A state prisoner seeking federal habeas review ordinarily must first exhaust available state remedies, presenting the federal claim through the state system. Statutes also impose filing deadlines, procedural restrictions, and substantial deference to qualifying state-court decisions. Suppose a prisoner claims only that a state judge misunderstood a state evidence rule. That allegation does not by itself establish unlawful custody under federal law. A proven denial of appointed counsel presents a federal constitutional question, although the petitioner must still satisfy the procedural requirements. Success does not always mean immediate freedom or factual innocence; a court may order release unless the state provides a lawful new proceeding. The Suspension Clause separately permits suspension of the writ only during rebellion or invasion when public safety may require it. For CLEP purposes, distinguish the stages: direct appeal follows the judgment, habeas collaterally tests custody, and a civil prison-conditions suit challenges treatment rather than the validity of detention itself.

review is demanding. Exhaustion gives state courts the first opportunity to correct a federal defect; procedural-default rules discourage withholding a claim; statutory deference protects finality after qualifying state decisions. These limits do not reduce habeas to factual innocence. A prisoner may challenge custody produced by a constitutional trial defect while guilt remains disputed. For CLEP purposes, identify custody, a federal ground, completion of the state process, and the remedy sought—not merely a request to reconsider ordinary error.

Video lesson: Due Process of Law: Crash Course Government and Politics #28