Where it appears to a court making a confiscation order that—
the court may, if it thinks it appropriate to do so, determine the extent (at the time the confiscation order is made) of the defendant's interest in the property.
The court must not exercise the power conferred by subsection (1) unless it gives to anyone who the court thinks is or may be a person holding an interest in the property a reasonable opportunity to make representations to it.
A determination under this section is conclusive in relation to any question as to the extent of the defendant's interest in the property that arises in connection with—
Subsection (3)—
In this Part, the "extent" of the defendant's interest in property means the proportion that the value of the defendant's interest in it bears to the value of the property itself.