He said: 'At the very least they were bound to constantly monitor him which they failed to do and which resulted in his death, unnoticed by both of them for quite some time.' Mr Hope told the court there were many risks to leaving Mr Williams in a room on his own while wrapped up in plastic sheeting and clingfilm after he had taken drugs. The court heard that he had lay dead for several hours before the pair realised what had happened. Tests on Mr Williams, who had worked for P&O Ferries for 30 years, later revealed he had taken a cocktail of drugs including the horse tranquiliser ketamine.
He was put through to the ambulance service and told them that Mr Williams had taken the drug ketamine. Richard Bowler (pictured) and David Connor, both from Canterbury, deny the charges and the trial continues
