(1) A * proceeds of crime authority cannot, unless the court gives leave, apply for an * unexplained wealth order against a person if:
(a) an application has previously been made for an unexplained wealth order in relation to the person; and
(b) the application has been finally determined on the merits.
(2) The court must not give leave unless it is satisfied that:
(a) the * wealth to which the new application relates was identified only after the first application was determined; or
(b) necessary evidence became available only after the first application was determined; or
(c) it is in the interests of justice to give the leave.