Our speciality is substance tests for narcotics. These tests visualise the presence of cocaine, opiates, amphetamines, LSD and cannabis products, as well as other diverse substances within minutes by the way of a reliable and easy-to-interpret colour change. ESA test systems stand out due to the fact that they are safe, easy to use and extremly reliable, as well as of a quality that our many customers in the police, customs, security services and justice system can rely on as part of their daily work.