epa12243136 A police officer poses with a flyer that details the 'prohibition of carrying weapons and knives in public transportation' at the beginning of a no-knife policy in public transport in public transport at the Alexanderplatz station in Berlin, Germany, 17 July 2025. EPA/CLEMENS BILAN

epa12243135 A police officer guards the scene in order to execute random checks of passengers at the beginning of a no-knife policy in public transport in public transport at the Alexanderplatz station in Berlin, Germany, 17 July 2025. EPA/CLEMENS BILAN

epa12243134 Police officers conduct checks on a passenger at the beginning of a no-knife policy in public transport in public transport at the Alexanderplatz station in Berlin, Germany, 17 July 2025. EPA/CLEMENS BILAN