Mouscron police detained a 25-year-old man in connection with the case.[1] On 9 June 2026, officers uncovered a large cannabis grow inside a house in the border Risquons-Tout district of Mouscron, close to Halluin and Tourcoing on the edge of the French Lille metropolis.[1] The operation was conducted as part of an inquiry by the Mouscron police zone’s Enquêtes et Recherches service, its investigations and research unit.[2] The Mouscron local police said the intervention followed several pieces of information gathered and used by investigators.[1]

During the search, officers found an indoor installation holding 332 cannabis plants, with growing equipment including lamps, ventilation systems and filtration devices.[2] Officers also seized a smartphone and 120 euros in cash.[2]

The prosecutor’s office was notified and the file was placed under judicial investigation, and the suspect was placed under an arrest warrant for infringement of the narcotics law.[2] The inquiry now continues under an investigating judge and has been entrusted to the Mons-Tournai federal judicial police.[2]