Section 9 Canadian Evidence Act 1985 is about Adverse witnesses. It is under Witnesses of Part I of the act. The Evidence Act of Canada is an Act respecting witnesses and evidence.
(1) A party producing a witness shall not be allowed to impeach his credit by general evidence of bad character, but if the witness, in the opinion of the court, proves adverse, the party may contradict him by other evidence, or, by leave of the court, may prove that the witness made at other times a statement inconsistent with his present testimony, but before the last mentioned proof can be given the circumstances of the supposed statement, sufficient to designate the particular occasion, shall be mentioned to the witness, and he shall be asked whether or not he did make the statement.
Previous statements by witness not proved adverse
(2) Where the party producing a witness alleges that the witness made at other times a statement in writing, reduced to writing, or recorded on audio tape or video tape or otherwise, inconsistent with the witness’ present testimony, the court may, without proof that the witness is adverse, grant leave to that party to cross-examine the witness as to the statement and the court may consider the cross-examination in determining whether in the opinion of the court the witness is adverse.