Can't find what you are looking for?  Try the following sources:

Library Search Engine  - Alternate Link

Other Drug Policy Research Links

Federal Data Center and Clearinghouse for Drugs and Crime Data  - 1-800-666-3332 - A central reference point for all US Government crime data.   The place to call first if it isn't here.

Your local library.  Much of the material you find here originally came from local libraries.  If there is a college or university near you, check their library.