(a) Any person, official or institution required by this article to report a case involving a child known or suspected to be abused or neglected, or required by section eight hundred nine of this article to forward a copy of a report of serious injury, who knowingly fails to do so or knowingly prevents another person acting reasonably from doing so, is guilty of a misdemeanor and, upon conviction, shall be confined in jail not more than ninety days or fined not more than $5,000, or both fined and confined.
(b) Any person, official or institution required by this article to report a case involving a child known or suspected to be sexually assaulted or sexually abused, or student known or suspected to have been a victim of any non-consensual sexual contact, sexual intercourse or sexual intrusion on school premises, who knowingly fails to do so or knowingly prevents another person acting reasonably from doing so, is guilty of a misdemeanor and, upon conviction thereof, shall be confined in jail not more than six months or fined not more than $10,000, or both.