(concurring specially).
I write specially again to point out that habeas corpus reaches jurisdictional error, constitutional error, all “causes” listed in SDCL 21-27-16(1) through (7), and other illegal detentions, including those resulting from failure to comply with “substantive statutory procedures.” Security Sav. Bank v. Mueller, 308 N.W.2d 761, 762-63 (S.D.1981). See also my special concurrences in Goodroad v. Solem, 406 N.W.2d 141, 146 (S.D.1987) and in Podoll v. Solem, 408 N.W.2d 759, 761 (S.D.1987).