Sport Ireland has defended its handling of Steven Colvert’s doping case in the wake of a claim by one of the world’s leading anti-doping experts that the Irish sprinter was wrongfully convicted.

A controversial doping case against Irish sprinter Steven Colvert has been thrown into doubt by a series of scientific articles that have highlighted inconsistencies in the process and raised questions about the anti-doping system.

Analyses of samples taken by UN inspectors in Iraq have so far not revealed any evidence of prohibited nuclear activity, a spokeswoman for the UN nuclear agency said today.