麻豆社

A ban on the sale of so-called "zombie knives" comes into force in England and Wales later this week.

The serrated blades can be up to 2ft (60cm) long, often carry images or words that are seen to glamorise violence and are sold online for as little as 拢8.

We spoke to Chief Constable Alf Hitchcock, the National Police Chiefs' Council Lead for Knife Crime, Gifford Sutherland, from Foundation 4 Life, and to Yvonne Lawson, whose 17-year-old son Godwin was stabbed to death in London.