Tex. Code Crim. Proc. art. 11.05 : CODE OF CRIMINAL PROCEDURE — CODE OF CRIMINAL PROCEDURE — HABEAS CORPUS — By Whom Writ May Be Granted

The Court of Criminal Appeals, the District Courts, the County Courts, or any Judge of said Courts, have power to issue the writ of habeas corpus; and it is their duty, upon proper motion, to grant the writ under the rules prescribed by law.