A member of the benzodiazepine class of hypnotics/sedatives, flunitrazepam has received extensive media attention because of the manner in which it is abused in sex-related crimes. Typically, a tablet is placed in the alcoholic drink of an unsuspecting victim; the combination of flunitrazepam and ethanol has a synergistic and pronounced physiological effect, with symptoms including temporary memory loss, loss of motor control and unconsciousness. The victim is incapable of self-defense and unable to recall details of sexual assault. In both forensic and toxicological laboratories, flunitrazepam is routinely identified via standard infrared and gas chromatography/mass spectrometry screening techniques, and two general color tests. However, both tests give analogous results for a wide variety of structurally related benzodiazepines and are therefore of limited value. This article describes three new color/screening tests for flunitrazepam. The tests are simple, rapid, definitive, and do not require any specialized chemicals, equipment, or techniques. All three work on both pure flunitrazepam and any flunitrazepam-containing tablet, capsule, or powder. Table, references