This research is motivated by law enforcement against narcotics crimes which has been more focused on criminalization, on the other hand the purpose of public health in this case the rehabilitation of drug abusers is less considered. Therefore, the author examines legal problems in the construction of law enforcement against narcotics crimes in Indonesia. The research method used is a normative juridical method with a legal approach and a concept approach.The results showed that legal problems in the construction of law enforcement in dealing with narcotics crimes in Indonesia are caused by the construction of laws in law enforcement against narcotics crimes that are currently not progressive and integrative due to several weaknesses in the Criminal Sanctions Policy in Law Enforcement to Counter Drug Crimes in Indonesia, including the following: 1) Law enforcement only focuses on criminalization,  2) Punitive Rehabilitation and Failure to Achieve Public Health Goals, 3) Prison Overcrowding: High Costs of Criminalization and Lack of Results, 4) Unclear Distinction between Drug Abusers, Users, Addicts and Victims of Narcotics Abuse, 5) Ambiguity of Unlawful Norms and Intentional Elements in Narcotics Abuse