(1) In this part:
"sentence of imprisonment" means—
(a) an ACT sentence of imprisonment; or
(b) an interstate sentence of imprisonment; or
(c) if relevant, a commonwealth sentence of imprisonment.
(2) For this part, a sentence of imprisonment resulting (or originally resulting) from the operation of a law of the ACT, a State or a non-participating territory is taken, except as prescribed by regulation, to have been imposed (or originally imposed) by a court of the ACT, the State or the non-participating territory.
(3) In this part, a reference to a sentence of imprisonment being served in the ACT includes a reference to a sentence of imprisonment being served in New South Wales under this Act.