The Kinahan cartel is notorious worldwide for its brutal activities. In an exclusive report, the Observer finds out what it takes to monitor and convict organised criminals
Craig Taylor felt a mix of thrill and dread when he sat down beside the leader of the most deadly gang operating in Ireland and the UK and began secretly filming.
Notoriously observant and adept in evaluating if he was being watched or followed, Christopher Kinahan Sr was one of the most-wanted criminal figures in the world, founder of a cartel ranked alongside the Italian mafia and the brutal Los Zetas in Mexico.
