The case against Ms. Lagarde centered on Bernard Tapie, a former entertainer and owner of Adidas who had previously been jailed on corruption charges. Mr. Tapie accused the lender Crédit Lyonnais, in which the French state had a stake at the time, of cheating him when it oversaw the sale of his share in the sportswear empire in 1993. Years of costly legal battles ensued.
http://www.nytimes.com/2016/12/19/business/imf-trial-christine-lagarde-france-verdict.html?_r=0