Witness testimony is one of the most common and, possibly, the most important evidence in criminal procedure. Person who is called to give the testimony has their duties and obligations and has to fulfill them. Otherwise, they can be penalized with money fine or even with imprisonment. There are some exceptions in witness examination; some people have certain privileges and are free of the duty to testify and other people are excluded from the duty to testify. If the person who is testifying is a minor or a victim of a felony, it is important to give them special care and attention. Witness examination is a process of establishing the facts that are necessary for solving the case. There are many reasons why witness testimony is not completely reliable. For example, their psycho-physical condition and their relationship with the defendant affect their testimony a lot. Therefore, body leading the criminal proceedings can test witness credibility by asking them more questions, presenting them previous testimony and by making them face another witness. By testifying, witnesses can easily jeopardize their own or life of a close person. To avoid that, witnesses can be included in special „Care program“ where they are being taken care of.