Predicting Pretrial Misconduct with Drug Tests of Arrestees discusses an assessment of the effectiveness of drug testing as a means of predicting that a released arrestee will commit an additional offense or fail to appear in court during the pretrial period. Researchers analyzed data from Washington, D.C.; Manhattan, New York; Dade County, Florida; Prince George's County, Maryland; Maricopa County, Arizona; and Milwaukee County, Wisconsin, for how arrestees' urine test results and other factors (especially criminal records and community ties) might have a bearing on postrelease misconduct (arrests and failure to appear). Overall, researchers found some evidence that drug test results predict pretrial misconduct. The evidence was inconsistent, however; some sites indicated drug tests could not predict any type of behavior and others predicted either rearrest or failure to appear but seldom both.