(a) Public officials, public employees, and public agencies are immune from civil liability for good faith conduct under this subchapter.
(b) Nothing in this subchapter shall be deemed to impose any liability upon or to give rise to a cause of action against any public official, public employee, or public agency for any discretionary decision to release relevant and necessary information, unless it is shown that the public official, public employee, or public agency acted with gross negligence or in bad faith.
(c) The provisions of this section shall also apply to persons or organizations assisting a public official, public employee, or public agency in performing official duties upon a written request to assist them by the public official, public employee, or public agency.