Section 25172 Of Article 9. Subpenas From California Government Code >> Division 2. >> Title 3. >> Part 2. >> Chapter 1. >> Article 9.

. The sheriff of the county to whom the subpena is delivered shall serve it by reading it to the person named therein, and at the same time delivering to him a copy thereof. The official return of the sheriff upon the subpena, showing the time and place of service is prima facie evidence of service.