On 5 August 2026 Lucerne police shut an outdoor cannabis plantation at Rötelberg in Menznau and arrested three men.[1] Two of them had run.[1] A police dog, Quanto, stopped them.[1] Police said the three were two Albanians and one Swiss, aged between 28 and 42.[1]

The field covered about 1.3 hectares, and there was equipment for growing and processing.[1] Analysis found THC in places up to twelve times the legal limit.[1] Proceedings were opened against six people in all.[1] The public prosecutor in Sursee is leading the investigation.[1] Police said the presumption of innocence applies.[1]

Lucerne police announced the raid on 27 August.[1] The photographs published with the account show the standing crop and plants hung to dry.[2]