Eight presentations on a variety of LC-MS applications were given in Session 170 on this first afternoon at Pittcon. One of the most interesting was session 170-6, "Techniques of LC-MS in Forensics Analysis." The speaker, Michael C. Zumwalt, discussed the variety of LC-MS instrumentation available to meet both qualitative and quantitative needs. Among the interesting applications he discussed were those for detecting drugs of abuse and explosives. Workplace drug testing and forensic toxicology are examples of these applications. LC-MS continues to be a rapidly growing technique, and the ways in which it can be used in forensic analysis are quite varied. Serial measurement systems are used for quantitation, while parallel systems are best for qualitative applications. Serial systems such as single quadrupole and triple quadrupole mass spectrometers are very useful for detecting drugs of abuse in oral fluids. A particular advantage noted by the speaker is the ease of sample collection, which can even be done in the field, for example, by a police officer.