Unique expertise because of a background in Dutch intelligence services

The course is tailored to the professional context, level of expertise, and requirements of participants

Instructors with relevant operational experience

TGA is CRKBO and NRTO registered


Triangular Group Academy (TGA) offers a Dutch professional observation course that covers the required theory and works with a number of practical scenarios. In addition, the course includes a very challenging final scenario to really challenge the team's participants.

A number of principles that are essential for efficient and generally secretive observation, such as appropriate decision-making, preparation, the use of alibis, covers, and non-police behavior are extensively dealt with. Reconnaissance, (counter-) surveillance versus (counter-) observation, and observation technology are also a core of the course.

During the real-life practical and final scenarios, all acquired knowledge and skills are tested and continuously evaluated by seasoned instructors who have earned their spurs with the Dutch intelligence services.

The course offers both an excellent domestic and foreign module in, for example, Estonia.


TGA's instructors have ample operational experience with Dutch intelligence services and special police units. During the course, practical experiences are shared with the team. The instructors tailor the training to the professional context of the participants.


Depending on budget and the requirements of the team's participants, the TGA Observation Course can be tailor-made. Please contact us if you are interested and we will elaborate on the possibilities, or draw up a quotation.

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Observation Training


  • Secretly observe
  • Preparation
  • Alibis and covers
  • Non-police behavior
  • Explorations
  • (Counter-) Surveillance
  • (Counter-) Observation
  • Technique
  • Practical exercises
  • Final scenarios
Contact us!

Our instructors are internally supervised in terms of content and didactics. This gives them the knowledge and skills required for training at the highest level.

Tim Müller

Operational manager

Good intelligence is the key to decision making

Arno Reuser

OSINT Authority, Teacher

The goal of our courses is to truly prepare students for reality. That is why I strive to provide the highest possible education quality.

Rob Smets

Product manager

Our clients say

"This should be a mandatory training for everyone who conducts internet-based research."

Cursist, OSINT Master Course

"I very much enjoyed the course. The teacher was excellent! A very good instructor."

Cursist, OSINT Scout Course

"Wow! Top training, really puts your mind to work."

Cursist, OSINT Pathfinder Course

"The result of my Counter Surveillance Course is that the teacher has removed my uncertainties and has given both tips and tools to deliver good quality work both independently and in a team context."

Private researcher (POB), anonymous


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