(a) For purposes of this article, school employee includes a teacher, school administrator, student teacher, safety or resource officer, coach, adult volunteer in a position of authority or any other school employee who has contact with a student in his or her official capacity as a school employee.
(b) For purposes of this article, a student is defined as any person under the age of 19 years enrolled or attending classes in a licensed or accredited public, private, or church school that offers instruction in grades K-12, regardless of whether school is in session.