OSINT (Open Source Intelligence) has become an indispensable tool in modern investigations. While the Internet offers unprecedented access to information, one question remains: Can we use everything simply because it is “public”?

In Switzerland, the answer is more nuanced. Access to information does not automatically mean that it can be used freely in the context of an investigation or professional activity. Here’s what you need to know about the legal limits and professional practices of OSINT.

What is OSINT?

OSINT involves collecting, analyzing, and cross-referencing publicly available information in order to document facts, verify details, or analyze a situation.

Sources used may include, among others:

  • Publicly accessible social media platforms
  • Official Records
  • Administrative Publications
  • The Web Archives
  • Open Databases
  • Document or image metadata

 

The goal is not to circumvent IT security measures but to make intelligent use of information that is already available in order to gain a more comprehensive understanding of a situation.

While the tool is powerful, its professional use in Switzerland is strictly regulated by law.

The fundamental principle: just because something is accessible doesn't mean it can be used

In Switzerland, the freedom to access public information is the norm. However, as soon as this data is extracted for professional use or in exchange for payment, several legal principles come into play.

Three pillars are particularly important:

The golden rule is simple:

Just because information is available on the Internet does not mean it can be freely included in a file without a legitimate justification.
Digital investigations therefore require an approach that is proportionate and respectful of fundamental rights.

The legal limits of digital investigation

Digital investigations cross the line into illegality when they become intrusive or disproportionate. Here are the key points to watch out for: 

Systematic data collection or profiling

Cross-referencing dozens of sources to build a detailed profile of a person (habits, social circle, opinions, or activities) may be considered an invasion of privacy.

Unauthorized access to data

Article 143 of the Swiss Criminal Code criminalizes unauthorized access to protected data. 
Contourner une restriction technique, même relativement simple, afin d’accéder à une information qui n’est pas destinée au public peut constituer une infraction pénale.

Behavior similar to stalking

Excessive, repeated, or targeted digital surveillance may be considered harassment. The frequency and intensity of searches must always be proportionate to the intended purpose.

Protection of one's reputation and honor

The reuse of photographs, comments, or posts outside their original context is strictly limited.
Even when information is available online, its use remains subject to rules protecting personal rights and reputation.

Why should you hire an OSINT professional?

In a legal, business, or private context, the value of information depends largely on how it was obtained and documented.

In Switzerland, private investigation is a regulated profession in several cantons and may require specific licenses, particularly in Geneva.
Hiring an OSINT specialist helps ensure, among other things:

The probative value of the information gathered

The research is conducted using a rigorous methodology that allows the facts to be documented in a way that is useful for analysis.

Source traceability

Each piece of information is stored along with its source to minimize the risk of disputes.

Ethics and proportionality

A professional also knows when to refuse a mandate if it exceeds legal boundaries or constitutes a disproportionate invasion of privacy.

OSINT: A precision profession

OSINT is more than just a simple Google search. It is a demanding discipline that requires advanced technical expertise, strong analytical skills, and an in-depth knowledge of Swiss law.

When faced with complex situations, rushing is often detrimental to the legality and reliability of the results.

In our practice, we prioritize rigor and method. When the technical complexity goes beyond standard procedures, we rely on specialists capable of performing their work with the precision required by Swiss law and best practices in digital forensics.

Do you need data analysis or a digital investigation?

Our team is available to assess your situation and determine the solutions best suited to your needs.
Every case is handled in strict compliance with the legal framework, confidentiality requirements, and the principles of proportionality mandated by Swiss law.

FAQ – OSINT and digital investigation in Switzerland

Yes, provided that the information is collected and used in accordance with Swiss law, particularly with regard to data protection and the right to privacy.

OSINT relies exclusively on the use of legally accessible information. Hacking aims to gain unauthorized access to protected data.

It depends on their source, how they were collected, and the context in which they are used. Information that is obtained legally and properly documented generally has greater value.

Why hire a private investigator for an OSINT investigation?

Open-source intelligence (OSINT) research involves more than just finding information: it also requires verifying, contextualizing, and legally utilizing that information. A private investigator specializing in OSINT has the tools, methods, and experience necessary to cross-reference data, document sources, and ensure that the investigation complies with Swiss law. This approach yields reliable, actionable, and legally defensible information.