The European Monitoring Centre for Drugs and Drug Addiction is an organization that helps keep track of the use of drugs in Europe. They work to provide important information about drugs like how often people are using them and the effects they can have on someone's health.
They also share information with other groups, like government agencies and healthcare professionals, so that everyone can be better prepared to help people who might be struggling with drug addiction.
Think of them like a big group of people who collect and share information about drugs to help everyone stay informed and safe.