Section II-22: Liberty of speech and press - Truth as evidence in prosecution for libel.

  Every person may freely speak, write, or publish his sentiments
on all subjects, being responsible for the abuse of that right;
and no law shall be passed to restrain or abridge the liberty of
speech or of the press.  In all criminal prosecutions for libel,
the truth of the matter alleged to be libelous may be given in
evidence to the jury, and if it shall appear to the jury that the
matter charged as libelous be true, and was written or published
with good motives and for justifiable ends, the party shall be
acquitted.