Describes how to integrate drug testing into a jurisdiction's pretrial services system. Several technological developments in drug testing have recently been advanced, including the expansion of hand-held devices to test for drug use and the intro. of the sweat patch. Includes the latest info. on 2 problems that are of great concern to programs that test urine for drug use -- flushing the system through fluid loading, and specimen adulteration. Both have the capacity to mask drug use, and sophisticated means to detect them have been developed. Describes a paperless chain of custody process developed by the D.C. Pretrial Services Agency.