French authorities and Interpol are investigating corruption at the Monaco-based International Association of Athletics Federations (IAAF), the sport’s governing body.
Dolle was banned by the IAAF’s ethics committee for his involvement in a corruption scandal that saw a Russian athlete blackmailed to ensure a positive doping test was “lost”.
Elaine Houlette, French lead financial prosecutor, told a news conference on Thursday that Dolle was found to have “50, 100, 200, and 500 euro notes distributed among eight envelopes”.
Last week, the ethics committee banned three senior officials for life for their role in corruption and blackmail, including the former head of the Russian athletics federation and former IAAF treasurer Valentin Balakhnichev.
Dolle escaped a life ban because his offences involved “omission, not commission”, the committee said.
On Thursday Houlette said a bank account containing €1.8 million had been identified as belonging to Balaknichev.
“The amount was seized as a protective measure,” she said.
“Further inquires will be necessary to see what financial flows took place and their links.
“We have good relations with Russian judicial authorities. We are also working with Singaporean anti-corruption authorities,” she added. “The duration depends on the speed of information received.”