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Are you a private individual or organisation in need of assistance in criminal investigations, or do you want to make use of our expertise in the area of investigations into civil cases, for example relationship issues? Then you have come to the right place, because we are a private investigation agency that has been recognised by the Dutch Ministry of Justice and Security.

Qualified investigators

Trapital uses a network of local and international private investigators, including professionals formerly employed by the military or the police. All investigators operate according to the guidelines of the General Data Protection Regulation (GDPR) and the Privacy Code of Conduct for Private Investigation Agencies. A copy of this code of conduct (in Dutch) can be found here.

Memberships BPOB and WAPI

As of March 2019, Trapital is a member of the BPOB, the Dutch industry association for private investigation agencies. The BPOB supervises the quality of services of the affiliated private investigation agencies. Among other things, the BPOB checks whether its members comply with applicable laws, regulations and the Privacy Code of Conduct. The objective is to protect the privacy interests of those involved and to guarantee the professionalism of the affiliated investigation agencies.

Trapital is also a member of the UK-based World Association of Professional Investigators (WAPI). This organisation tries to use its years of experience to create additional support among governments and companies worldwide and to influence public opinion.

How we operate

If you would like to engage our services for an investigation, we will always first invite you to a no-obligation initial meeting. During this meeting, we will discuss your case in more detail and we will also determine whether you have a legitimate interest in the assignment. We decide whether or not to take on your assignment on this basis. If we do, we will send you our proposal including a plan of action and a quotation. As soon as we have reached agreement, our investigators will start with the assignment.

Procedure and duration of the investigation

The procedure and duration of our investigations vary per case, depending on the assignment, objective and process of law we are required to follow. For example, a duty of disclosure applies, which means that the person involved must be informed of the investigation at a certain point in time. In addition, our investigations are carried out on the basis of proportionality and subsidiarity, which is required by law in the Netherlands. These concepts and procedures will be explained in more detail during the initial meeting.

Final report

All investigations and reports are safely documented and stored. Upon conclusion of an investigation, we will also provide you with a final report that includes the findings, analyses and, if required, advice on how to proceed. In case of criminal findings, we recommend that you report them to the police.

General overview of our investigation services

Below please find an overview of our services and the subjects that we can investigate (in alphabetical order). Some investigations are carried out in collaboration with other specialised partners, such as fellow detectives and cyber experts.

  • Absenteeism
  • Background Check (Pre-employment)
  • Child (Sex) Offences
  • Corporate Business Intelligence
  • Cybercrime
  • Finding Missing Persons
  • Fraud
  • GPS / Vehicle Tracking
  • Human Trafficking
  • Indignity, Slander
  • Industrial Espionage
  • Relationship issues
  • Scams
  • Social media
  • Surveillance, Counter Surveillance
  • Terrorism, Counterterrorism, Radicalisation 


Do you require our assistance in an investigation or a delicate matter? Or would you like to know more about how we operate as a private investigation agency? Please don't hesitate to contact us for a no-obligation initial meeting.