According to the Public Prosecution Service, drug collectors are mostly young people, who often hail from the southern area of Rotterdam. They are hired by international criminal organizations to collect drugs – mostly cocaine – from shipping containers. In one of the methods used, the drug collectors get themselves driven them into the port in a sea container, so they can collect the drugs during the night and move them outside the port area. A new law entered into force earlier this year, offering more possibilities for prosecuting drug collectors under criminal law; for more information, click u003ca href=u0022https://nos.nl/artikel/2419242-eerste-drugsuithalers-veroordeeld-onder-nieuwe-wetu0022u003ehereu003c/au003e (in Dutch). u003cbru003eu003cbru003eLastly, €500 notes are greatly prized in criminal circles because large amounts of criminal money are smuggled across borders, and the sheer volume and weight of the banknotes would be much greater without large denominations. In the case at hand, the attempt to exchange tokens for large denominations acted as a red flag pointing towards possible money laundering. This example also demonstrates that the principle of 'following the money' is very useful for combating money laundering and the criminal activity underlying it.