In this article for Finascope, Muriel Goldberg-Darmon, Guillaume Guérin, and Pierre Wolman discuss the Autorité des Marchés Financiers (AMF's) modification of the Investigations Guidelines (Charte de l’enquête et du contrôle) regarding the right to remain silent. They also examine its articulation with a potential obstruction and/or cooperation with the AMF during an investigation.