(1)  In determining the age of a person, the Court, the Secretary or any other person involved in the administration of this Act –

(a) must act on the best evidence or information that is reasonably available; but

(b) in the absence of any such evidence or information, may estimate the age of the person and act on that estimate.

(2)  For the purposes of subsection (1) , a statement in an application under this Act that a person is of a particular age is evidence that the person is that age.