--- title: "Walker v. O'Brien" citation: "216 F.3d 626 (7th Cir. 2000)" authority_id: "AUTH-CA7-WALKER-216-F3D-626" authority_type: "case" jurisdiction: "federal_seventh_circuit" precedential_status: "binding_in_ca7" url: "https://jason93.com/legal/federal-process/authorities/AUTH-CA7-WALKER-216-F3D-626/" legal_review: "2026-08-25" links_checked: "2026-10-15" links_available: 1 links_checked_count: 1 license: "CC BY 4.0" --- # Walker v. O'Brien ## Holdings used - A federal prisoner properly proceeding under § 2241 does not need a COA; in federal cases § 2253(c)'s COA category reaches § 2255. ## Material limitation Binding only in the Seventh Circuit and only for the bounded procedural postures in the linked claims. Published precedential full opinion reviewed from a public full-text mirror after no historical official opinion file was located. The separate state-prisoner portion is not generalized. A comprehensive commercial citator was not run. ## Official source and pinpoints 216 F.3d 626 (7th Cir. 2000), 216 F.3d 638: ## Linked claims - `CLM-CIR7-003` ## Used in - [Seventh Circuit Overlay](https://jason93.com/legal/federal-process/modules/95-circuit-overlays/seventh-circuit.md)