UNODC collects analyzes and reports data on drug trafficking trends including - arrest, seizures, price and purity of illicit drugs submitted by the Member States through the Annual Reports Questionnaires (ARQ).

By the same mechanism it also collects and reports data on illicit manufacture of controlled substances including data on clandestine laboratories.

In addition, UNODC collects and reports data on significant individual drug seizures as reported by Member States. UNODC also supports Member States in developing capacity to collect internationally comparable data on drug trafficking.