...1986. Since production and distribution of controlled substances are, by definition, illegal, there are little reliable data upon which to base estimates...involved. Most of those statistics which are available for 1985 and 1986 tend to reflect the results of law enforcement activity (eg, the numbers of individuals...

...Intelligence N Consumers Committee NNICC £ Preface Since production and distribution of illicit drugs are illegal, there is little reliable data upon which to base estimates of the types and quantities of drugs involved. Those statistics which are available tend to reflect the intensity...