"Holding bank accounts through companies is not illegal as long as they are declared, which was the case here," the lawyer was cited as saying.
The interview came a day after the "Panama Papers" documents leaked from a Panamanian law firm triggered investigations into possible financial wrongdoing by politicians and other high-profile figures around the world.
European socccer boss and former French international Platini is appealing against a six-year ban from taking part in international football activity.
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The ban is related to a payment of 2 million Swiss francs ($2.09 million) made to the Frenchman in 2011 and was imposed by world soccer's governing body, FIFA.
(Reporting by Andrew Callus; Editing by David Goodman)
