Burden of proof: The French Supreme Court rules that evidence obtained by the "mystery shopper" method is inadmissible (Rassemblement des opticiens de France / IMD Optic, Nagabbo)

*This article is an automatic translation of the original article, provided here for your convenience. Read the original article. The Rassemblement des Opticiens de France, a professional association whose mission is to moralize and defend the ethics of the optician profession, organized "mystery customers" to visit various optical stores in order to verify the possible fraudulent practice of falsifying invoices by increasing the price of lenses and decreasing the price of frames, in order to have the customers' mutual insurance companies pay a larger portion of the price of the frames. Relying on the testimony of several of these "customers", the union sued IMD Optic and

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  • University of Aix-Marseille

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Frédéric Buy, Burden of proof: The French Supreme Court rules that evidence obtained by the "mystery shopper" method is inadmissible (Rassemblement des opticiens de France / IMD Optic, Nagabbo), 10 November 2021, Concurrences N° 1-2022, Art. N° 105441

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