Didn't want to just put a "like" on this, Dan, because it feels like it would be trivialising it - but I agree with you 100%......Make the parents pay for the damage.
You'd assume so if the model was declared as an item of that value on the exhibition insurance. There's usually a requirement to list individual items over say £300. When I take part in a show with my N gauge layout I usually put at least £10k for insurance purposes (layout and stock) and to be honest that's probably not enough.... £8,500 for a train, I wonder if insurance companies offer coverage for that sort of thing.
Maybe they were some sort of protected class, or children of politicians or something?I read that the sh*ts were released pending further enquiries. They were caught trespassing where a huge amount of damage was done, what an earth do they need to enquire about? Wouldn't it have been better for them to residents in a cell for a couple of weeks until their trial?