(a) Expert affirmative evidence that the materials or activities are obscene is not required when the materials or activities themselves are presented as evidence.
(b) It shall be an affirmative defense in any prosecution under Section 619.17 that allegedly obscene material was disseminated, or presented for a bona fide scientific, medical, educational, governmental or judicial purpose by a physician, psychologist, teacher, clergyman, prosecutor or judge.
(Ord. No. 2139-74. Passed 4-28-75, eff. 5-1-75)