Sec. 15. (a) A law enforcement officer:
(1) lawfully engaged in the execution of the law enforcement officer's duties; and
(2) who reasonably believes that a person's presence within twenty-five (25) feet of the law enforcement officer will interfere with the performance of the law enforcement officer's duties;
may order the person to stop approaching.
(b) A person who knowingly or intentionally approaches within twenty-five (25) feet of a law enforcement officer lawfully engaged in the execution of the law enforcement officer's duties after the law enforcement officer has ordered the person to stop approaching in accordance with subsection (a) commits unlawful encroachment on a law enforcement officer, a Class C misdemeanor.