English to Spanish Law/Patents Law (general)

¿Cómo traduciriáis "writ of habeas corpus" en el siguiente contexto?
¿auto de avocación? ¿auto de prerrogativa de protección de los derechos del detenido? ¿auto de habeas corpus?

Contexto: The California courts rejected his argument that his restricted library access violated his Sixth Amendment rights. Once his sentence became final, he petitioned in Federal District Court for a writ of habeas corpus under 28 U. S. C. §2254. The District Court denied relief, but the Court of Appeals for the Ninth Circuit re¬versed, holding that “the lack of any pretrial access to lawbooks violated Espitia’s constitutional right to repre¬sent himself as established by the Supreme Court in Faretta [v. California, 422 U. S. 806 (1975)].”