On an application for a parentage order, the court may, for the purpose of deciding whether the proposed order will promote the child’s wellbeing and best interests, require the attendance before it of the birth mother, the birth mother’s spouse (if any), the other birth parent (if any), the applicant, or joint applicants, or another person who has sworn an affidavit for the application to—
(a) give evidence in relation to the application; or
(b) produce stated documents or things.