Police in the Kennemerland district of Noord-Holland collected over €6m from marijuana growers last year as part of a trial allowing them to confiscate plantation profits.

Once a plantation has been raided, police calculate how much profit they estimate the owner has made and then sequester cash and property equivalent to that value, news agency ANP reports.
Until now, plantation owners simply lose the current crop, as well as facing criminal charges.
Justice minister Ernst Hirsch Ballin said on Thursday he wanted to extend the trial to cover the entire country.
The Dutch marijuana-growing industry is thought to turn over some €2bn a year.