Doping claims of Ben Johnson fall on deaf earsClaims and confessions of sabotage and cover-ups disclosed in autobiography of Ben Johnson will not be investigated by the governing world body of athletics because the body is not obliged to act under its own statue of limitations.

Johnson, the disgraced Seoul Olympics 100m champion, claims that his drink was spiked with the banned steroid Stanozolol just before he went for a urine test after his Olympic triumph.

The claims will not be explored as the International Association of Athletics Federations has a self-imposed statute of limitations for eight years in doping cases and the Johnson doping incident traces back to the Seoul games that ended 21 years ago.