(1) A person commits the offense of tampering with a witness if he intentionally engages in conduct to induce a witness or a person he believes is about to be called as a witness in any official proceeding to:
(a) Testify falsely or withhold any testimony which he is not privileged to withhold; or
(b) Absent himself from any official proceeding to which he has been legally summoned.
(2) Tampering with a witness is a misdemeanor.