CHIANG RAI – Residents in Chiang Rai Province recently proved that keeping watch really works. Key TakeawaysA resident reported illegal dumping on the Chiang Saen-Mae Sai highway on July 31, 2026. Wiang Municipality officials quickly identified the suspect using community tips and careful ground checks. Fast Action by Wiang MunicipalityNews of the illegal dumping quickly reached Phop Manamontikul, the mayor of Wiang Municipality. Their fast response showed how much the town hates illegal waste dumping.