If—
(a) a
jury is not satisfied beyond reasonable doubt that a charge of an offence
against section 20AA or 20AB has been established; but
(b) the
Judge has instructed the jury that it is open to the jury on the evidence to
find the defendant guilty of a specified offence against this Act; and
(c) the
jury is satisfied beyond reasonable doubt that the specified offence against
this Act has been established,
the jury may return a verdict that the defendant is not guilty of the offence
charged but is guilty of the specified offence against this Act.