ifoelge naevnte artikel 12 skal der indfoeres passende foranstaltninger til at overvaage fremstilling og forhandling af praekursorer; paa sin 35. samling besluttede De Forenede Nationers Kommission for Narkotiske Midler at indfoeje nye stoffer paa listerne over stoffer i naevnte konvention; for effektivt at finde frem til eventuel ulovlig anvendelse af narkotika eller ulovlig indfoersel i Faellesskabet og for at sikre, at der anvendes faelles regler for tilsyn paa faellesskabsmarkedet, er det noedvendigt at fastsaette tilsvarende bestemmelser i naervaerende direktiv;
Whereas Article 12 of the United Nations Convention envisages adoption of appropriate measures to monitor manufacture and distribution of precursors; whereas, by decisions taken at its 35th session, the United Nations Commission on Narcotic Drugs included additional substances in the tables of the Annex to the Convention; whereas corresponding provisions should be laid down in this Directive in order to detect possible cases of illicit diversion of drugs in the Community or to counter fraudulent imports into the Community and to ensure that common monitoring rules are applied in the Community market;