If your employee has nothing against your desire to check it out, feel free to send it to the information-analytical center for the local police Department. There, he must obtain a special certificate about the presence or absence of a criminal record.
If the future employee of your organization refuses this test, you need to make a profile of the applicant the item of providing information on the presence or absence of a criminal record. In this case, the collection of necessary documents, a potential employee will be required to provide this.
You can do without involving the employee in the process. Provided that your company has its own security service. She has the right to submit a request to the interior Ministry or police Department. However, first make sure that the request has passed through the HR Department of your organization. In this case, the bodies of internal Affairs all information is provided without any problems.
If your potential employee has a tattoo, it is better to learn about their origin and meaning. It will not hurt to make a request to the bodies of internal Affairs about the criminal record of that person.
There are situations where a previous conviction is already extinguished. Then help your employee may be "clean" in this respect. Do not be lazy to go through the SB in the information service Department of internal Affairs.