In any proceedings for an offence against this Act, an allegation in the
a specified person was, or was not, the holder of a licence under this Act at
a specified time; or
a specified provision was, at a specified time, a condition imposed in
relation to a licence under this Act held by a specified person; or
a specified person was, or was not, an authorised person or inspector under
this Act at a specified time,
will, in the absence of proof to the contrary, be taken to have been proved.