Takkenberg argues that the cooperation was particularly successful when conducting the Bredolab botnet investigation, because foreign judges have been making use of the evidence produced by all Dutch parties mentioned.
To some the cooperation was controversial however because:
1. The Dutch Police had sent every internet user who owned an infected PC (and had become a facilitator of the botnet itself) a warning message;
3. The evidence produced by these Dutch entities resulted in an arrest in Armenia.
Dutch language news article:
4 Years In Prison For Armenian Bredolab Botnet Operator