The International Narcotics and Law Enforcement Office (INL) supports Costa Rican authorities and organizations in the fight against narcotrafficking and organized crime. It provides equipment, training, and technical assistance in security, justice, crime prevention, and strengthening of the legal system. Together with the Costa Rican government and non-governmental organizations, INL promotes prevention programs all across Costa Rica to help keep children and youth from becoming involved in crime and drugs.

INL works with the ministries of Public Security, Governance, Justice and Peace, Sistema Nacional de Áreas de Conservación (SINAC), the Costa Rican Drugs Institute, and the judicial branch, including judges, prosecutors, and the Investigative Police.