Section 81 - A party may attack or support credibility

(1) The credibility of a witness or of a part of the testimony of a witness may be attacked or supported by the party calling the witness and any other party.

(2) Where, before a party calls the witness, that party has reasonable grounds to attack the credibility of the witness or of a part of the testimony of the witness, that party shall, out of the presence of the witness, notify the Court and every other party of the expectation, but, if the witness is a party the witness need not be notified.