By Matt Slater and Simon Austin

The new head of the World Anti-Doping Agency has warned drug cheats that testing at the Beijing Olympics will be more stringent than ever before.

John Fahey, who took up his post on 1 January, has been impressed with work done by the Chinese authorities.

"The chances of getting caught, for those that want to cheat, are greater than ever before," Fahey told BBC Sport in his first interview as Wada chief.

"The tests will be more significant than at any other Olympics."

The Australian added: "They (the Chinese authorities) have done...