One of the world's most famous poker 'cheats', Richard Marcus, has claimed online poker could be headed for a fall if 'poker bots' and other methods of cheating online are not addressed.

Mr Marcus, who conned some of the world's biggest casinos in Atlantic City, Monte Carlo, London and Las Vegas, now writes books about his experiences.

He warns the presence of online 'bots', which pretend to be real players but are in fact computer programmes, could seriously damage the future of online poker.

"There is so much cheating going on