Under s 7(1)(a) of the Class Actions Act, it is the duty of the court granting leave to institute a class action, not the applicant, to specify the manner in which and the period within which notice must be given to class members. Where a court has accepted that a class exists and that a class action is appropriate, it must give directions on the best way of notifying as many members of the class as possible. A finding that an applicant is unsuitable to represent a class does not justify dismissing an application for leave to institute a class action; rather, under s 5(1), the court must appoint another suitable person as the representative. The adequacy of notice to class members must take into account the characteristics of the class, including rural, poor and less educated members, and may require multiple forms of notice including publication and radio broadcasts in indigenous languages.