The respondent mother in a high-conflict custody dispute moved to add the applicant father's new partner, sister, and mother as collateral respondents to her motion to change.
She sought a restraining order against them, alleging they colluded with the father to alienate the children from her.
The court granted the motion, finding it had jurisdiction under the Family Law Rules and the Children's Law Reform Act.
The court applied the Worrall factors, concluding the collateral respondents were necessary parties and that the exceptional circumstances of the case justified their addition despite the impending trial date.