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In page Charles Wells (gambler):

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When the French authorities began to investigate his affairs, Charles Wells fled to Britain with his clients’ money. The scam was remarkable for its scale, both in terms of the number of investors who lost money and the amount of their total losses, and the Sûreté accordingly mounted a determined operation to find out who "Lucien Rivier" was, and bring him to justice. He was finally traced to Britain and was arrested in January 1912. A Paris court sentenced him in November 1912 to five years in prison. As a direct result of his crime, the French government introduced controls on private banks, with a strict vetting procedure for their owners.[3]