Sec. 6. (a) Any function performed under this chapter, and a mutual aid agreement under this chapter, is considered to have been performed for public and governmental purposes.
(b) All immunities from liability available to Indiana political subdivisions, other units of local government in Indiana, and their officers, agents, and employees within Indiana are extended to an emergency responder from another state who is:
(1) providing mutual aid; or
(2) engaged in training and exercises;
under a mutual aid agreement authorized by this chapter.