If only it were that simple:
In this Act “hunting trophy” means the body of an animal, or a readily recognisable part or derivative of an animal, that—
(a) is obtained by a person (“the hunter”) through hunting the animal, and
(b) is obtained for the hunter’s personal use (which does not include consumption), whether or not the body, part or derivative has been processed in any way.
The Bill cares not a jot for CIC, SCI, Boone & Crocket or whatever other measuring system you might care to mention.