Knife crime: 'I take my eye out and it hits home'

Mark Bracewell is a former gang member who lost an eye when he was stabbed.

Since leaving his past behind him, the 44-year-old uses his experiences - and his injury - to warn youngsters about knife crime.

He delivers workshops in schools with the group Blinded Faith, and uses his prosthetic eye as a shock tactic.

"I take my eye out out... and it hits home," he says.