SDCL § 24-15-7.1: Effect of consecutive sentence for offense committed as an inmate.

Any person convicted of a felony while an inmate under the custody of the Department of Corrections and for which the sentence is made to run consecutively is not eligible for consideration for parole until serving the last of all such consecutive sentences. In such cases the parole consideration eligibility date shall be established subject to the provisions of subdivisions 24-15-5(2) and (3).