Officials at Oxford university had to close a party down when a student turned up with his home made flame thrower.
Inigo Lapwood, 20, said he made the weapon using parts from a nail gun and diesel engine glow plug and a canister of butane gas.
More top news
A teenager who carried out a prolonged, random attack on a man sleeping in bed has been jailed.
Friday morning's forecast for the east of the region
Friday morning's forecast for the west of the region