Columbia subject headings:
Drug control--United States.
Drug traffic--United States.
United States. Drug Enforcement Administration.
United States. Federal Bureau of Investigation.
Harvard subject headings:
Drug control--United States
Drug traffic--United States
United States. Drug Enforcement Administration
United States. Federal Bureau of Investigation
Princeton subject headings:
Drugs--Law and legislation--United States.
Narcotic laws--United States.
United States. Drug Enforcement Administration
United States. Federal Bureau of Investigation