Gerhard Janetzky, organiser of Berlin's DKB-ISTAF Golden League meeting, has suggested a "cooling off" period which would see former drug cheats including Dwain Chambers welcomed at European meetings from next year.
Chambers is currently pursuing a rugby league career with Castleford but has not ruled out returning to athletics and competing at the Olympic Games in the summer.
Currently the 30-year-old Londoner is not eligible under British Olympic Association (BOA) rules barring drug offenders from the team.
But Chambers has not ruled out challenging the BOA in the High Court and there are strong legal reasons to believe he would win his case.
And the sprinter received more good news when Janetky indicated he would be welcome in Berlin next year.
Janetzky confirmed he will abide by a Euromeetings consortium recommendation for this summer's meeting on June 1.
It proposed members should refuse entries to athletes who have committed serious anti-doping violations since 2003. That was the year Chambers tested positive for the designer steroid tetrahydrogestrinone (THG) leading to a two-year suspension.
The 51 venues backed off from imposing the decision as a cartel, believing if they do it on an individual basis there will be less threat of legal action.
But it is was always believed some meetings would renege on the proposal and although Berlin is not planning to do so this year, Janetzky did not rule out the possibility of it happening in the future.
"We have an internal policy not to invite an athlete who comes back from a doping suspension for another year," he said in an interview with the Berlin paper 'Der Tagesspiegel'.
Janetzky added: "We don't want the negative doping topic to get into our event. This distracts from the sport.
"That is why we have to have a cooling-off-period. And I think one year makes sense.
"If Chambers does well this year and is back in the doping control system, then I would be happy if he comes to Berlin next year."
Chambers still has to repay much of the £100,000 prize money he earned at meetings under the International Association of Athletics Federation Golden League banner.
Janetzky is confident the Berlin event will be compensated for his appearances there in 2002 and 2003.
"He was second and third in the 100metres which means this is between US 20,000 US 25,000 US dollars," said Janetzky.
He also revealed if Chambers did appear again he would take that into account regarding appearance fees.
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