Overview

• Eric Mouzin has brought a civil action for faute lourde and denial of justice over the 2003 disappearance of his daughter in Guermantes.
• The public prosecutor acknowledged failings in the justice service and said "il y a une faute lourde," yet argued there is no direct causal link to the absence of early charges against Michel Fourniret.
• Mouzin seeks €150,000 for material and financial loss plus €200,000 for moral harm.
• Investigators initially dropped the Fourniret lead, and his role was legally recognized only in 2020; he died in 2021 without trial and Monique Olivier was convicted in 2023.
• The ruling could guide how families of long‑unsolved crimes pursue state accountability.