The Office Central pour la Répression du Trafic Illicite des Stupéfiants (OCRTIS) is a cross agency and cross business department of the French Judicial police (National Police). It is part of the sous-direction de la lutte contre la criminalité organisée et la délinquance financière (SDLCODF). It was formed on 3 August 1953 in response to the 1936 treaty signed by the League of Nations.
Office Central pour la Répression du Trafic Illicite des Stupéfiants Wikipedia
It comprises police, gendarmes and customs officers. Its headquarters are in the Nanterre district of Paris and it has detachments in:Charles de Gaulle Airport
Coordinate intelligence gathering to support investigations, prevention of drug trafficking
Carry out investigations nationwide to identify and dismantale drug trafficking operations
Provide technical support and expertise to local agencies
Coordinate operations with Foreign Ministry, Defense ministry and Customs
Provide drug related statistics to other Police departments
Represent the French police in international bodies and liaise with Interpol and Europol.