Abstract Undoubtedly, the ability of justice aides to perform their role in achieving justice without fear of intimidation or reprisals is an essential factor in the success of the judicial system, upholding the word of law, and achieving the desired justice. In addition to the role played by justice aides in combating crime, especially after the spread of organized crime and crimes of domestic and international terrorism, which justifies the inclusion of these witnesses with protection from attacks, intimidation or threats to which they may be exposed. Failure to be covered by protection leads to the reluctance of justice aides (witnesses, whistleblowers, or experts) to perform their duty or to report crimes because of the fear that they, members of their families, or their property will be subjected to reprisals or arbitrary measures by the perpetrators. This leads to a call for individuals to refrain from participating in assisting justice agencies in combating crime. The issue of protecting justice aides has occupied great importance at the international level, as it has been enshrined in many international and regional charters, agreements and declarations. In turn, most of the comparative legislations tended to adopt legal texts to protect justice aides. The research focuses, with its methodology, on analyzing and consolidating a set of rules and provisions contained in international laws, charters, agreements, and international and regional declarations to clarify the conditions he mentioned for inclusion in protection, its procedures, and the measures prescribed for it. The study reached a number of conclusions and recommendations, which we believe will contribute to the establishment of international protection rules for justice aides.