(1) A document certified by the Attorney - General to be a record of evidence sent to the Attorney - General under section 37 is admissible in evidence in any of the following:
(a) proceedings under section 38 or 39;
(b) proceedings in respect of an offence against this Act;
(c) proceedings under the Extradition Act 1988 ;
and, when so admitted, the evidence recorded in it is evidence in the proceedings.
(2) The magistrate or court hearing proceedings in respect of an offence against this Act must not admit in evidence a document mentioned in subsection ( 1), or any part of it, unless the magistrate or court thinks that, in all the circumstances, it would be unjust not to do so.