The formulated scientific definition of the representative of the victim in criminal proceedings is such: it is a lawyer whose information is entered in the Unified Register of Lawyers of Ukraine and who has a valid right to practice law, who provides professional (legal) assistance to an individual, the one who has suffered moral, physical, or property damage as a result of a criminal offense, to a legal entity to which property damage was caused by a criminal offense, as well as to the administrator of the issue of bonds, who, in accordance with the provisions of the Law of Ukraine "On Capital Markets and Organized Commodity Markets", acts in the interests of bond owners who have suffered property damage due to the criminal offense based on the provisions of the Code of Criminal Procedure of Ukraine and within the frame of the specified agreement on the provision of legal assistance. The ways of implementation of the duties of the victim by his lawyer by ensuring their fulfillment are outlined: 1) to arrive at the summons of the investigator, prosecutor, investigating judge, and court, and in case of the impossibility of timely arrival, to inform in advance about this, as well as the reasons for the impossibility of arrival; 2) not to prevent the establishment of the circumstances of the criminal offense commission; 3) not to disclose, without the permission of the investigator, the prosecutor, the court, the information that has become known to him in connection with his participation in criminal proceedings and that is a secret protected by law. The proposed areas of activity of the lawyer at the pre-trial stage of criminal proceedings are to ensure the realization of the rights of the victim, which arise from the moment of acquisition of the relevant procedural status, and the content of the activity is the actions prescribed by law with the use of procedural means, which include: assistance in filing a statement of a criminal offense; initiating, participation in investigative (search) and other procedural actions, assessment of their legality and expediency; restoration of violated rights of the victim, compensation for damage caused by the criminal offense.