A major study on private security was prepared by which organization?

The Private Security Task Force of the National Advisory Committee on Criminal Justice Standards and Goals conducted a significant study on private security. This task force, established in the early 1980s, aimed to evaluate the role and effectiveness of private security within the broader context of law enforcement and criminal justice. The output of their research provided essential insights into the private security landscape, contributing to the development of standards and best practices within the industry.

This organization's focus on systematic analysis and its authoritative stance in criminal justice made it particularly well-suited to address the complexities of private security, thereby establishing it as a crucial source of information and guidance for policymakers and practitioners alike. In contrast, the other organizations listed focus on broader security issues, law enforcement strategies, or specific discussions rather than conducting comprehensive studies on private security itself.