The article emphasizes that under complicated criminal situation today investigating crimes, especially organized crime exerted, must be carried out by integrated application capabilities and methods of operational and procedural criminal activities. However, law enforcement functions specified at this time are in the active phase of the reform of their legal and institutional framework, hence the need for further detailed scientific understanding of the mechanism of operative-investigative criminal proceedings and ensure security of participants in criminal proceedings.Safety of participants in criminal proceedings is considered to be one of the main tasks and at the same time an integrated component of the concept of «operational and criminal provision of criminal proceedings». The directions of improvement of legal regulation of security of participants in criminal proceedings are set up in the article.Considered the article position allows the author to conclude that the safety of participants in criminal proceedings is one of the main tasks and complex at the same time part of the term «search operations to ensure the criminal proceedings.» Improving the regulatory framework to ensure the safety of participants in criminal proceedings will facilitate the implementation of the Law of Ukraine «On State Protection of court employees and law enforcement agencies» and «On safety of persons involved in criminal proceedings,» the CPС Ukraine (2012) in a separate section entitled «State protection of persons involved in legal proceedings, judges, court staff and law enforcement agencies» with foreknowledge of regulations in accordance with the recommendations made in this article

Безпека учасників кримінального судочинства обґрунтовується як одне з основних завдань та одночасно складова комплексного поняття «оперативно-розшукове забезпечення кримінального провадження». Визначено напрями вдосконалення правового регулювання забезпечення безпеки учасників кримінального судочинства.