arrange for the exchange of information between governmental officials concerning the use and abuse of controlled substances;

cooperate in the institution and prosecution of cases in the courts of the United States and before the licensing boards and courts of the several States;

conduct training programs on controlled substance law enforcement for local, State, tribal, and Federal personnel;

maintain in the Department of Justice a unit which will accept, catalog, file, and otherwise utilize all information and statistics, including records of controlled substance abusers and other controlled substance law offenders, which may be received from Federal, State, tribal, and local agencies, and make such information available for Federal, State, tribal, and local law enforcement purposes;