On May 8, the Market Supervision Office of Dunren Subdistrict in Fuling District, Chongqing Municipality, concentrated efforts on a source-cleaning campaign targeting drugs and medical devices. Law enforcement officers adopted the "four no-notices and two direct approaches" method to conduct a comprehensive, dragnet-style inspection of businesses and entities involved in the operation and use of drugs and medical devices within their jurisdiction. The inspection focused on key areas such as procurement channels, prescription sales, storage, and maintenance of drugs and medical devices, aiming to prevent substandard products from entering the market from the source.