He said: “We show the parents their pictures, recover the weapons and make sure they know that behaviour is unacceptable.

“We have large kitchen knives, axes, samurai swords, baseball bats, a huge number and different type of weapons – in simple terms weapons that can kill.”

Samurai swords?

Strangely when a friend of mine got stabbed at a New Years Eve party in Austin, TX several years ago, the police found his assailant because he was posing with knives on MySpace.