8Interpretation and certificates
(1)
In this Act, except in so far as the context otherwise requires—
" international arrangements " includes any arrangements between the United Kingdom and a colony ;
" order " includes any sentence, direction, warrant or other means of giving effect to the decision of a court or tribunal; and
"the prisoner" has the meaning given by section 1(1)(b) above.
(2)
In this Act a reference to criminal jurisdiction, in relation to a court or tribunal in a country or territory outside the British Islands, includes a reference to any jurisdiction which would be a criminal jurisdiction but for the age or incapacity of the persons in respect of whom it is exercised.
(3)
In any proceedings, the certificate of the Secretary of State—
(a)
that a particular country or territory is a party to any such international arrangements as are mentioned in section 1(1)(a) above,
(b)
that the appropriate authority of a country or territory which is such a party has agreed to the transfer of a particular person in accordance with any such arrangements, or
(c)
that, for the purposes of any provision of this Act, a particular person is or represents the appropriate authority of any country or territory,
shall be conclusive of the matter certified.