Hallucinogens covers the most commonly abused drugs such as LSD, MDMA ("Ecstasy"), and PCP ("Angel Dust"), as well as many lesser-known chemical substances that cause similar effects. Chapters have been contributed by leading analysts and investigators around the world, and are highlighted with numerous illustrations. This unique handbook will serve is a cross-disciplinary source of information for forensic toxicologists, law enforcement officers, and others involved in the fight against drugs.