Clause 21

Where, in any proceedings under this Act, a person is alleged to be a child or young person, the court, after making such inquiry as it thinks fit as to the age of that person, may determine and declare his age, and for the purposes of this Act, the age so declared by the court shall be deemed to be the true age of that person, unless the contrary is proved, in the same or any subsequent proceedings brought in relation to that person.

Where a person is charged with an offence under this Act in respect of a person apparently under a specified age, it shall be a defence to prove that the person was actually of, or above, that age.