Sec. 4. (a) Except for the award of court costs, attorney's fees, and other expenses as described in section 5 of this chapter, and except as provided in subsection (b), a chief law enforcement officer is immune from civil liability based on an act or omission relating to the issuance or denial of a certification under this chapter.
(b) The immunity described in subsection (a) does not apply to an act or omission that constitutes gross negligence or willful or wanton misconduct.