(1) For an investigation involving the prescription of a controlled substance, the department may establish an ad hoc review panel to provide the department with expert information regarding a specific health profession or health specialty or a specific health care treatment or procedure as it relates to the investigation. The department shall establish an ad hoc review panel under this subsection as follows:

  (a) The department shall triennially establish a pool of 10 physicians, 5 of whom are allopathic physicians licensed under part 170 and 5 of whom are osteopathic physicians licensed under part 175.

  (b) For each ad hoc review panel, the department shall appoint 3 physicians from the pool established under subdivision (a).

  (2) The ad hoc review panel shall provide the information described in subsection (1) to the department during the investigation process and before a formal complaint is issued.