OPINION

Allen “F” Calton, an inmate at the Stiles Unit of the Texas Department of Criminal Justice, filed a petition for a writ of mandamus in the 67th Judicial District Court of Tarrant County, Texas. 1 In his mandamus action, Calton asked the trial court to compel Steve Schiller, a former official court reporter for the 213th Judicial District Court of Tarrant County, to file transcripts of pretrial hearings that were conducted before Calton’s murder trial. 2 At the time Calton filed his mandamus petition with the trial court, he had already perfected a direct appeal from the dismissal of a lawsuit he had filed in the 163rd Judicial District Court of Tarrant County, which raised the same issues and sought essentially the same relief. 3 The trial court determined that it was without jurisdiction to address Calton’s petition, and it dismissed the matter for lack of subject-matter jurisdiction. Calton appeals, and we affirm.

“A district court has mandamus jurisdiction only to enforce its own jurisdiction.” Garrett v. Williams, 250 S.W.3d 154, 159 (Tex.App.—Fort Worth 2008, orig. proceeding) (citing Tex. Gov’t Code Ann. § 24.011 (West 2004)). Here, the purpose of Calton’s petition for writ of mandamus in the trial court was not to protect the trial court’s jurisdiction. Therefore, the trial court did not have subject-matter jurisdiction to order the relief requested by Calton, and his petition for a writ of mandamus was appropriately dismissed. See Garrett, 250 S.W.3d at 159 (citing Tex. Civ. Prac. & Rem. Code Ann. § 14.003(b)). 4

We affirm the judgment of the trial court.