When we speak of Europe, without a doubt we first think of the European Union. One of its main advantages is a lower level of control of the member countries’ internal borders which originates from the Schengen Agreement. The agreement enables a quicker and easier movement of people and goods between member states; consequentially its shortcoming is the cross-border activity and movement of criminals and criminal organisation that are active in the member states. The idea of co-operation between European police emerged at approximately the same time as the European Union was created, at first through TREVI, the informal organisation that was created in the 1970’s, then through the Europol Drugs Unit and through the European Police Office. Finally, in 2010, the organisation emerged under the name of The European Union Agency for Law Enforcement Cooperation or Europol. More threats emerge every year, jeopardizing the security of Europe and that of the rest of world. Furthermore, international criminal organisations improve and make use of their innovated technology, making it necessary for Europol to adjust and broaden its area of activity in order to make its work effective.