ABSTRACT ANTI-DRUG CAMPAIGN STRATEGY THROUGH SOCIAL MEDIA BY PUBLIC RELATIONS (PR) AT THE NATIONAL NARCOTICS AGENCY (BNN) RIAU PROVINCE Supervisor: Dr. Yasir, M.Si Drug abuse in Indonesia is still rampant, and there is even an increase so that drug trafficking cases have become large-scale crimes. Therefore, the Public Relations of BNN Riau Province conducted an anti-drug campaign on social …