Riau provincial police destroyed drug evidence from four international-network cases uncovered during Operasi Sarang Narkoba (OSN), its anti-drug operation.[1] Ten people were named as suspects in those cases.[1] Investigators described the suspects as alleged controllers and couriers who received or collected narcotics in Dumai and Bengkalis for distribution in Riau.[1] Investigators said they were continuing to develop the cases to find other suspects and trace the wider network.[1]

The evidence destroyed totalled 100.55 kilograms.[1] It comprised 82.79 kg of sabu-sabu (methamphetamine) and 17.77 kg of ganja (cannabis).[1] Police estimated the combined haul was worth about Rp149.73 billion.[1] Riau police chief Inspector General Arman Achdiat announced the destruction in Pekanbaru on 28 October 2026, calling it a commitment to eradicating narcotics trafficking and protecting the public.[1]

The four cases were investigated by the provincial drug-investigation directorate with Kampar and Kuantan Singingi district police, with support from the military, the Riau narcotics agency, Riau customs and the public.[1] Before destruction the evidence was examined by the Riau police forensic laboratory, then destroyed by machine after officers signed the destruction record.[1]