 However, on this occasion the Merseyside Police responded by driving vans and Land Rovers at high speed into the crowds quickly dispersing them.This tactic had been developed as a riot control technique in Northern Ireland by the Royal Ulster Constabulary and had been employed with success in quelling the Moss Side riots by the Greater Manchester Police.A 23-year-old local man, David Moore, died after being struck by a police vehicle trying to clear crowds.