A Staffordshire Bull Terrier which mauled its owner in front of BBC staff was likely to have taken crack cocaine, an inquest has heard. Mario Perivoitos, 41, died in March after losing 10 pints of blood and having his larynx crushed in the attack.

A BBC documentary crew witnessed, but didn't film, the incident while they were making a programme about drugs at the victim's home in Wood Green.

An inquest at North London's coroners court heard the behaviour could have been triggered by crack cocaine.

Nicholas Carmichael, a veterinary toxicologist, said indicated high levels of cocaine and morphine were found in the animal's urine.