11(1)In relation to any hearing under this Act, the Commission may summon any person, by summons to witness signed by the chair, and require that person to give evidence on oath or affirmation and to produce the documents and things that the Commission considers necessary for the hearing.

11(2)The Commission shall give any person in respect of whom a hearing is held an opportunity to give evidence on oath or affirmation, to cross-examine witnesses and to call witnesses to give evidence on oath or affirmation.