Superintendent Gavin Buist displays some knives handed into police at Alloa Police station in Scotland.

Devon and Cornwall police were surprised to receive this rocket launcher which can fire 350 metres.

A collection of 500 ornamental letter openers were handed to Lothian and Borders police.

Gloucestershire police described this knife as "terrifying".

Sergeant Jim Mills of Staffordshire Police with a collapsible circular throwing knife handed in to his force.

One of the hundreds of weapons handed in to Kent police.

Some of the weapons to be destroyed by the Metropolitan Police.