The authors investigated the features of the legal regulation of the functioning and organizational aspects of the activities of the authorities, the competence of which includes ensuring the security of the court, judges, and other participants of legal proceedings. Particular attention is paid to the intergovernmental body of the Council of Europe - The European Committee on Legal Co-operation (CDCJ), one of the activities of which is to ensure the proper functioning of the judiciary. The features of the general project between the CDCJ and Ukraine “Support for judicial reform in Ukraine (voluntary contribution)” are identified. The features of the activities of sheriffs in Canada and the USA, the regulatory documents of these countries, which determine the status and competence of the sheriffs in the field of judicial protection, are highlighted. The chronology of the establishment in Ukraine of the state system for protecting the court, judges, and other participants of legal proceedings, from 1997 to the present, is investigated. In the course of the study, the authors have been determined the individual stages of the establishment in Ukraine of the state system for protecting the court, judges, and other participants of legal proceedings; the competence of state bodies to ensure judicial protection and the legal basis for their activities, depending on the period of operation. The content of the norms of some regulatory legal acts of Ukrainian legislation, which regulates the activities of the bodies responsible for ensuring the security of the court, judges, and other participants of legal proceedings, is disclosed. The scheme of “gap” while elemental situational analysis of safety of participants in legal proceedings is examined. A matrix for ranking the factors of complex security of participants of judicial system and recommendations on development of public management in the area of legal and judicial security.