(1) This Part does not apply to evidence that relates only to the credibility of a witness.
(2) This Part does not apply so far as a proceeding relates to bail or sentencing.
(3) This Part does not apply to evidence of:
(a) the character, reputation or conduct of a person; or
(b) a tendency that a person has or had;
if that character, reputation, conduct or tendency is a fact in issue.