The National Coordinator for Terrorism and Security (NCTV) has for years followed politicians, left-wing and right-wing activists and religious leaders with fake accounts, NRC reports Friday based on its own investigation.
Unlike the police or a secret service, the coordinator has no authority to track people online.
The newspaper's investigation is based on conversations with dozens of stakeholders and internal documents.
Confidential analyzes would reveal who the persons portrayed are married to, whether they have children and who they associate with, sometimes including photographs.
So-called 'weekly reports' about certain persons were also reported to have been sent to municipalities, the police, AIVD and foreign security services.
This would have been the case several times with a preacher from Almere.
The NCTV was established to coordinate information between government agencies.
The agency also makes its own analyzes about national security.
According to the newspaper, however, it is nowhere specified how far the coordinator may go in collecting information about persons and organizations.
In the Netherlands, only the police or secret service have the authority to follow people online.
They must be accountable for this to supervisors.
The NCTV does not have these powers and is therefore not accountable for this.
NU.nl has asked NCTV for a response, but the coordinator did not want to respond yet.
says NCTV chief Pieter-Jaap Aalbersberg that the authority should do research on online communications, but there are also things happened which had no legal basis.
He says that the NCTV has since stopped doing so.