LONDON, England (BBC) – The governing body of international athletics is waiting for confirmation that five Jamaican athletes were cleared of doping offences ahead of the World Championships in Berlin.

The athletes involved are Yohan Blake, Allodin Fothergill, Lansford Spence, Marvin Anderson and Sheri-Ann Brooks.

They were cleared by a disciplinary panel set up by Jamaica’s Anti-Doping Commission (JADCO).

But JADCO has appealed the decision and believes there may be a case to answer.

The disciplinary panel had decided to announce the athletes’ clearance on the basis that methylxanthine, the substance found during tests taken at Jamaica’s national championships in June, was not on the World Anti-Doping Agency (WADA) banned list.

JADCO chairman Kent Gammon said on Monday: “We have not found any of them to be in violation of the code.”

However, JADCO, as an independent organisation and a signatory of the WADA code, does not support the findings of its own disciplinary panel.

It has launched an appeal based on evidence that methylxanthine contains a similar structure to tuaminoheptane, which is listed as a stimulant in the WADA list of unauthorised substances.

A spokesman for the IAAF, the governing body of world athletics, confirmed that its medical and anti-doping commission would make recommendations to its council when they meet in Berlin this week as soon as the respective documents are submitted by Jamaica’s Amateur Athletics Association (JAAA).

The IAAF can challenge any judgements in the Court of Arbitration for Sport (CAS), world sport’s highest court of appeal, and could also provisionally suspend athletes until CAS delivers a verdict.

As it stands the Jamaican athletes are clear to compete in the World Championships, which begin in Berlin on Saturday.

All five runners are part of the Caribbean nation’s 46-strong team.

Blake, who won bronze in the 100-metre at the world junior championships in 2006, is Olympic champion Bolt’s training partner and has recorded the fifth-fastest time over 100-metre this year.

Anderson is also a 100-metre runner, while Fothergill and Spence compete in the 400-metre.

Brooks, the Commonwealth 100-metre champion, was cleared last week on a technicality because JADCO tested her B sample without her knowledge.

BBC Sport travelled to Jamaica to find out how such a small country has been able to consistently produce, develop and nurture world-class athletes.