Presumptive color tests are often used in the field of forensics to help identify the presence of a potential drug. In recent years, Dr. Luis Arroyo and his team have worked on finding a better way to detect drugs as part of a National Institute of Justice-funded study. With the use of screen-printed carbon electrodes and Raman spectroscopy, they have been able to find a drug identification method that is more accurate than the presumptive color tests and that can be used both in labs and in the field.
