These thief detection pastes will prove without a doubt that the incriminating stain on the suspect's hands or clothing came from an article treated with “Multi-Stain®.” The initial stain will appear almost immediately. The secondary stain appears when the stain is exposed to long wave ultraviolet light. The third stain will appear under long wave ultraviolet light after the suspect has attempted to wash off the visible stain. The fourth stain will appear several hours after contact with the treated article. This fourth stain is visible and almost impossible to remove. The yellow paste stains yellow, fluorescent green, fluorescent blue, and visible purple. The red paste stains red, fluorescent red, fluorescent blue, and visible purple.