On 10 June 2026, a control operation against the introduction and possession of narcotics took place inside Saint-Hubert prison, as announced by the Luxembourg prosecutor.[1] The Semois et Lesse police zone coordinated the operation, supported by Federal Police dog teams and the Centre Ardenne and Namur Capitale police zones, whose detection dogs joined the searches.[2] A magistrate from the public prosecutor’s office was present during the control to supervise the findings made on site.[1] The reports drawn up after the offences were to be sent to the prosecutor for further judicial action.[1]

Officers discovered and seized 91 grams of cannabis and 10.5 grams of cocaine inside the prison.[1] The 91 grams is recorded here as the cannabis component, while the 10.5 grams of cocaine is noted only to describe the same mixed seizure and is excluded from cannabis figures.[2]

The Luxembourg prosecutor and the Semois et Lesse police said they intend to continue active, targeted anti-drug efforts, particularly inside prisons.[1] The prosecutor and police framed the operation as part of the fight against the introduction and circulation of drugs in prisons.[2]