The provisions of section 17(1) and section 19 do not apply if the person's conduct is –

(a) a fair report of a public act; or

(b) a communication or dissemination of a matter that is subject to a defence of absolute privilege in proceedings for defamation; or

(c) a public act done in good faith for –

(i) academic, artistic, scientific or research purposes; or

(ii) any purpose in the public interest.