Section 31.09. Powers of the department regarding investigation and inspection

(a)  In conducting an investigation or inspection, the commissioner or
  his  authorized  representative  shall  have  the   power   to   inspect
  facilities,  examine  records,  conduct examinations and interviews, and
  obtain such other information as may be required in order to  carry  out
  his responsibilities under this article.
    (b)  All  investigations  and inspections of clinical records shall be
  made  by  persons  competent  to   conduct   such   investigations   and
  inspections.    Information obtained by the commisioner from the records
  of patients receiving services shall be kept confidential in  accordance
  with the provisions of this chapter.