Relator seeks a writ of mandamus to compel the Texas Department of Criminal Justice to credit his sentence with 12 months of time credit. The Texas Department of Criminal Justice is not a person against whom we may issue of writ of mandamus other than to protect our jurisdiction, and Relator has not shown that the writ is necessary to enforce our jurisdiction. See Tex. Gov't Code Ann. § 22.221 (Vernon Supp. 2003).

The petition for writ of mandamus, filed May 21, 2003, is DENIED.

PER CURIAM

Opinion Delivered May 29, 2003

Before McKeithen, C.J., Burgess and Gaultney, JJ.

1. Tex. R. App. P. 47.4.