Can I use a booster seat in the back seats (in the boot) of a land rover discovery?

Just got a land rover discovery 7 seater and my daughter is wanting to sit in the very back seats (the two folding down ones in the boot area). She is 6 and still uses a booster seat and I'm just wondering if it's legal for her to go in these folding down seats with a booster seat?|||If it's the Disco II or later with the forward facing seats, yes there's no problem.|||If they are equipped with a proper 3 point inertia reel belt like the front passenger seat no problem|||As long as there is a seat belt no problem.|||sure if theres a seat belt