§ 156.50 Offenses involving computers; defenses.
  In any prosecution:
  1.  under  section  156.05  or  156.10  of this article, it shall be a
defense that the defendant had reasonable grounds to believe that he had
authorization to use the computer;
  2.  under  section 156.20, 156.25, 156.26 or 156.27 of this article it
shall be a defense that the defendant had reasonable grounds to  believe
that  he  had  the  right to alter in any manner or destroy the computer
data or the computer program;

    3.  under  section  156.29  or  156.30 of this article it shall be a
defense that the defendant had reasonable grounds to believe that he had
the right to copy, reproduce or duplicate in  any  manner  the  computer
data or the computer program.
(As amended by L.2008 c.590 effective 11/1/08)