Police officers acting on a 5am tip-off joined colleagues from Kakamega to intercept a truck coming from Uganda at the Pan Paper area of Webuye town on 13 June 2022.[1][2] Inside the truck they found bhang packed into ten sacks resembling second-hand-clothes bales, and the driver was arrested on the spot.[1][3] The consignment had come from Tororo in Uganda and was headed for Mombasa, and police said the driver, Charles Mutuku Kamuya, began giving leads on others behind the haul.[3][2] Officers first estimated the street value at Sh15 million, while the charge sheet later put the 555,700 grams at Ksh 16,671,000.[1][3][2]

Kamuya was tried for trafficking in narcotic drugs and convicted.[2] In July 2023 a Webuye court fined him Ksh 45,000,000, in default two years in prison, and added a 20-year prison term; the High Court in Bungoma dismissed his appeal against the sentence in July 2024 and affirmed the 20-year term.[2]