Infidelity Investigation: certainty instead of doubt
A suspicion that will not go away costs more than any answer ever could. People describe it almost identically: you still function, but you are no longer there. That is where our work begins — not to expose anyone, but to give you a factual basis for your own decisions.
When an investigation makes sense
When the suspicion has become specific: changed routines, unexplained absences, a partner who deflects simple questions. It does not make sense as a response to a vague feeling — in that case an honest conversation is faster and cheaper, and we will say so.
How we work
We begin with a confidential consultation, by phone or in person. We listen, assess the situation and tell you plainly what surveillance can and cannot deliver. Only then is an assignment defined, with a clear timeframe and objective.
Surveillance itself is carried out by experienced investigators in unmarked vehicles, with no contact whatsoever with the person observed. Everything is recorded: time, location, observation, photographic material. You receive a written report designed to withstand scrutiny in court.
What German law allows — and what it does not
This is the question international clients ask most, and the answer differs from what many expect. Surveillance in public space is lawful where a legitimate interest exists. With a specific suspicion of infidelity that may affect maintenance or the division of assets, that condition is usually met.
What is prohibited, and what we never do: attaching GPS trackers to another person’s vehicle, accessing private messages, entering a dwelling, or intercepting phone calls. In Germany these are criminal offences. Anyone offering them is breaking the law — and simultaneously rendering the result legally worthless.
The polygraph as an alternative
Surveillance is often not the first step at all. Where both partners are willing to establish the truth, a polygraph examination is faster, less expensive and considerably less damaging. It is conducted solely with the express consent of the person being tested. Many couples use it to save a relationship rather than end one.
Confidentiality
Your case is not recorded anywhere third parties could see it. Communication follows whatever channel you choose. Neutral invoicing is available on request.
How an infidelity investigation actually runs
It starts with a conversation in which we ask an uncomfortable question: what exactly do you want to know at the end? “Whether he is cheating” is an understandable feeling, but as a brief it is too soft. It becomes workable once we translate it into verifiable points — where the person drives on Tuesdays after work, whether they meet a particular individual, whether the second apartment exists. Those points become the plan.
Then we set the boundaries: which days are observed, how many investigators are deployed, and at what point we stop. That last one matters most. Surveillance that runs on indefinitely because something might still turn up is the most expensive way to get no answer at all.
In the field we work with two or three investigators in rotation. We document as we go — time, place, observation, photographic record — and report to you after each day of work. You learn where things stand as it happens, not only at the end.
What you hold at the end
A written report: chronological log, dated photographic evidence, a plain summary without judgements. No investigator will tell you what your relationship means — that is not our job. Our job is to put you in a position to decide on solid ground rather than on a feeling.
If the suspicion is not confirmed, the report says so just as plainly. That happens more often than clients expect, and it is a complete result, not a failed assignment.
When there is a shorter route
Not every case needs surveillance. Where both partners are willing to establish clarity, a polygraph examination is faster, cheaper and considerably less taxing. It takes place only with explicit consent and requires one appointment instead of several days.
Where assets are involved — missing money, an unexplained second address, payments to third parties — we combine surveillance with OSINT research from publicly available sources. Which route fits your situation we will tell you openly at the first meeting, even when it is the cheaper one.
What usually brings people to us
The suspicion rarely comes from nowhere. Most often it begins with a change in the everyday routine: new working hours without new duties, a second phone, weekends explained differently each time. A second common trigger is financial — payments that cannot be accounted for, or rent on an apartment nobody knows about.
The third is the hardest. The suspicion has been there for months, was raised once and denied — and since then two people have lived alongside each other without anything being resolved. That is the state most of our enquiries arrive in.
What determines the scope
Four things: the number of days in the field, the subject’s daily routine, whether several investigators are needed at once, and whether you want a written report. Travel is added where the work takes place outside Hamburg.
We estimate the scope after the first conversation and give you the price before the assignment, not after. If it turns out along the way that less is needed than planned, we say so and bill accordingly.
Frequently asked questions
Is surveillance legal in Germany?
Yes, in public space and where a legitimate interest exists. GPS tracking of another person’s vehicle, accessing messages and entering a home are not permitted.
How long does an infidelity investigation take?
It depends on the person’s routine. Two to four days of surveillance are often enough for a reliable picture.
Can I use the report in court?
The report is structured to be admissible. Whether a particular court admits it remains the court’s decision.