31—Control by investigating agencies of certain records, information and
material
The chief officer of an investigating agency must, in accordance with the
regulations—
(a) keep
as records a copy of—
(i)
each application for a surveillance device warrant under
this Act; and
(ii)
each surveillance device warrant issued under this Act;
and
(iii)
each application for a surveillance device (emergency)
authority under this Act; and
(b) keep
any information or material derived from the use of a surveillance device
under a warrant; and
(c)
control, manage access to, and destroy, any such records, information and
material.