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Exercise 4 Answer these questions.

1.INTERPOL, the United Nations, the Customs Cooperation Council, the G7 and the Organization for Economic Co-operation and Development .

2.The lack of a treaty basis for the organization detracts from its authority and legitimacy.

3.an indispensable communications system.

4.the field of drug trafficking.

5.the 1961 Convention on Narcotic Drugs, the 1971 Convention on Psychotropic Drugs, the 1988 Vienna Convention (mainly concerned with law enforcement measures), and the 1999 Convention on Organized Crime.