'My son cut off his penis while high on skunk'

A man whose son cut off his penis and repeatedly stabbed his mother while high on skunk – a strong strain of cannabis – has spoken exclusively to BBC Radio 5 live about the dangers of being addicted to the illegal drug.

The father, who wanted to remain anonymous, told Emma Barnett that his son had been a "bright, witty, rugby-playing lad" before he started taking drugs aged 16.

This clip is originally from 5 live Daily on Friday 2 June 2017.