"Human trafficking", according to the Palermo protocol of the United Nations, is the recruitment, transport, relocation, provision of sanctuary and acceptance of persons through the threat of the use of force or use of force or other forms of coercion, abduction, fraud, deception, Abuse of power or an endangered position, or to give or receive funds in order to obtain the consent of a person who has control over another person for the purpose of exploitation. It has many forms, but the most common are: forced labor and sexual exploitation. A special form of human trafficking is also organ trafficking. All these abuses leave marks on the victims, and most often you can see physical injuries such as hematoma, dehydration, severe thinness, broken bones. In addition to physical, victims can also have severe psychic symptoms such as depression and pathological fear. Human trafficking has three basic elements: the work, the way and the purpose of exploitation. The work implies what has been done, the way it tells us that the crime itself has been executed, and the purpose of exploitation is the final goal of trafficking. Prostitution, forced labour, slavery or parts similar to slavery and organ extraction are in that category. The causes are numerous, but the most important are poverty, war, natural disasters, ignoring the organs of the law, while globalization contributed to faster and easier crossing international borders. DNA identification can be applied in the context of trafficking in human beings for post-mortem identification of victims, identifying victims in transit and investigating suspects for human trafficking. It is also used in the investigation of sexual exploitation, illicit adoption of children and organ trafficking.