"The most recent figures available from the Office of National Drug Control Policy (ONDCP) indicate that, in 1999, federal expenditures on control of illegal drugs surpassed $17 billion; combined expenditures by federal, state, and local governments exceeded $30 billion. What is more, the nation's so-called 'drug war' is a protracted one. The country has spent roughly this amount annually throughout the 1990s."

Source

National Research Council, National Academy of Sciences, "Informing America's Policy on Illegal Drugs: What We Don't Know Keeps Hurting Us" (Washington, DC: National Academy Press, 2001), p. 1.
http://www.nap.edu/openbook.p…