The purpose of the criminal proceedings is to determine the material facts to uncover the perpetrators and implement the provisions related to all aspects of criminal law enforcement. It must demonstrate with evidence of crimes to detect the perpetrators. Molecular genetic examination of the evidence obtained from one of the most powerful evidence for the lighting of the judicial events. However, this process revealed the genetic code of individuals is the privacy and fundamental rights and freedoms of the persons connected with the strict regulatory requirements within the scope of protection.Molecular genetic analysis of the subject not recovered from the scene of biological discovery, preservation and suspect that part of the event for comparison, defendant, victim or other third parties to comply with legal regulations on taking samples from the body are important in assessing the scope of legal evidence of the results obtained. Biological samples are taken from the findings and the results of molecular genetics studies conducted on the subject of criminal proceedings have the opportunity to use outside events. Therefore, as for the protection of individuals' rights to privacy of the biological examination complied with, in terms of law enforcement officers and judicial staff involved in the process it is also important to require experts with civil and criminal liability.