The article can be described in just 2 words "DO NOT BELIEVE". The author gives examples without reinforcing them with anything or documents or links to Internet resources. Just PR for the sake of PR. The author gives an example that they helped some woman, and so what? In this example, he says that they were able to surpass a certain "private detective" who allegedly took an advance payment for the work and didn’t do it, and a little lower he writes that they themselves take an advance payment with pleasure. And where is the guarantee that they will sometimes do the work and do it with dignity? What this is expressed is not clear, and the author himself is modestly silent about it. For example, in my work I do not contact the prepaid system at all. We placed an order, received the first result (and you know that the first will be followed by more information) then ask for money from the customer, being absolutely sure that the work will be completed to the end. And so it turns out scam, fundraisers. But was there such a woman in general, that’s the question! When I am going to omit someone by belittling another, I usually have a document in my hands. For example, the customers of the examination are interested in whether my examination will take place in the courts - I show the verdicts of the courts in which this examination already appears as evidence. I also show a particular court ruling on a (purchased) polygraph examiner, my competitor, in which a judge speaks unflattering about his work. Moreover, he (this polygraph examiner) dumps at the cost of examination. But having these materials in hand, the customer can independently and objectively decide who to contact with the order. In this case, even if we assume that such a woman was in fact, a private detective is bound by a non-disclosure agreement about client information, so he simply cannot give this example!