Sec. 21.152.  CONDUCT OF INVESTIGATION, INQUIRY, OR HEARING.  A member of the commission, the director, or an officer or employee of the department who has been designated by the commission to hold an investigation, inquiry, or hearing may:
(1)  administer an oath;
(2)  certify an official act;
(3)  issue a subpoena;
(4)  order the attendance and testimony of a witness;  or
(5)  order the production of a paper, book, or document.
Acts 1995, 74th Leg., ch. 165, Sec. 1, eff. Sept. 1, 1995.