DEA Narcotics Investigator'S Manual Author:United States Government An exact reprint of the same manual used by the Drug Enforcement Administration to train its narcotic investigators, this extremely hard-to-find volume details every possible angle involved with drug law enforcement. Learn about interviews and interrogations, case preparation, testifying in court, informants, surveillance, undercover ops, entrap... more »ment, raids, clandestine labs and more.« less