Every person restrained of his liberty, under any pretense whatever, may prosecute a writ of habeas corpus to enquire into the cause of the restraint, and shall be delivered therefrom when illegal. R.L. 1910, § 4882.
Persons who may prosecute writ
12 O.S. § 1331 — under Title 12 — Civil Procedure.
12 O.S. § 1331