A fifteen year old girl with a previous record of being arrested for various 'small' crimes including shoplifting and drunk & disorderly is caught on CCTV setting fire to a wheely bin full of rubbish and wheeling it up against the back door of a large high street store. The subsequent fire caused approx £250,000 of damage (also loss of takings in the week before Christmas as the shop could not re-open). Very luckily no-one was hurt as it was in the middle of the night.
Hypothetically what would happen to this girl?