(1) If a person, whether charged with an offence or not, is brought before a Court otherwise than for the purpose of giving evidence, and it appears to the Court that he or she is a child, the Court shall make due enquiry as to the age of that person, and for that purpose shall take the evidence as may be forthcoming at the hearing of the case.
(2) If in a charge or indictment for an offence it is alleged that the person by or in respect of whom the offence was committed was a child or was under or had attained any specified age, and he or she appears to the court to have been at the date of the commission of the alleged offence a child or to have been under or to have attained the specified age he or she shall for the purposes of this Act be presumed at that date to have been a child or to have been under, or to have attained, that age, unless the contrary is proved.
(3) An order or judgment of the Court is not invalidated by subsequent proof that the age of a person has not been correctly stated to the court, and the age presumed or declared by the court to be the age of the person brought before it shall, for the purposes of this Act be the true age of the person brought before the court and if the person has attained the age of eighteen years that person shall for the purposes of this Act be considered not to be a child.