This act shall not apply to persons who may possess or distribute
obscene matter or participate in conduct otherwise prescribed by this
act, when such possession, distribution, or conduct occurs in the
course of law enforcement activities, or in the course of bona fide
scientific education or comprehensive research or study, or bona fide
objects of art or artistic pursuits, or like circumstances or
justification, where the possession, distribution or conduct is not
related to the subject matter's appeal to prurient interest.