The employees of each company is in a way a living organism. Malfunction of one element leads to a destabilization of others. Therefore, what counts is not only the competence of persons participating in the company’s functioning, but also the level of their credibility. This may raise some doubts among the employers when it comes to them trusting new persons “coming from the outside” or better controlling the current staff in order to prevent sharing company’s information externally. Our task is to prevent the client’s activity from being threatened in any way with failure because of disloyalty of one of its staff members. In such a case, an effective solution would be to use services of our detectives who specialize in the screening of employees credibility. It is highly effective and enables e.g. determining connections, contacts and chronological information on the suspected person. Such a person may be the one applying for a job or the one who has been occupying a strong position in the company for longer time. Trust is a superior value that determines building a well-integrated team. Therefore, it is worth knowing whether you can trust your own employees.