Much of our knowledge about trafficking routes results from law enforcement activity and intelligence. Information on quantities of drugs seized and information on the origin and destination of shipments can give an indication of the main routes and modes of transport. However, such information is also affected by many factors, including law enforcement strategies, resources and priorities, as well as changes to routes and practices in response to interdiction efforts or new opportunities. When it comes to drug trafficking the picture is constantly changing in response to new markets, technological developments and law enforcement activity.
Drug trafficking is a highly profitable commercial activity and remains a core business for organised crime groups across Europe today. Understanding the reality of the European drug market requires a holistic approach, following the supply chain from production and trafficking to distribution and sales.