Caroline Michel-Aguirre is an investigative reporter for the French magazine L’Obs. She previously headed its investigation department for four years. Her 2019 book La Syndicaliste (The Syndicalist) recounted aggression toward a whistleblower and was adapted for an upcoming film starring Golden Globe-winning actress Isabelle Huppert. In February 2022, Michel-Aguirre released a second book, with journalist Matthieu Aron, named Les Infiltrés (The Infiltrators), which covers the influence of consulting firms in politics and received the Relay & SEPM Magazine Press Prize for best investigative work.