What exactly does it mean to clear the source and cut off the flow?

The action of clearing the source and intercepting the river is an important measure taken by the National Narcotics Control Commission to assess the situation, and it is also a key battle that runs through the drug control work throughout the year. All police officers and all combatants are required to improve their political positions, strengthen their responsibility, and implement the rigid requirement of stressing politics in the crackdown and rectification actions, which is reflected in the effectiveness of preventing risks, ensuring safety and ensuring stability. It is necessary to coordinate the traditional and innovative ideas and effectively enhance the effectiveness of the anti-drug crackdown. Actively study the new characteristics and new trends of drug crimes, focus on online and offline battlefields, deepen the working mechanism, innovate technical tactics, and make every effort to clear the drug distribution network and consumer market, exert prestige and form a shock. It is necessary to coordinate the two key points of management and safety, and make every effort to prevent and resolve drug-related risks. Always take preventing drug addicts from making trouble as the top priority of all work, and make comprehensive policies to prevent drug addicts from getting out of control and making trouble. It is necessary to coordinate the cultivation of typical trees and early warning and listing to stimulate the vitality of grassroots drug control work. Establish the city's "one chess game" idea, adhere to the leadership, flip chart operations, stubble suppression operations, and multi-police cooperation, and fully organize and win the anti-drug "clearing the source and intercepting the river" action.