A more comprehensive manual on overall security operations.
Doc 9811 bridges the gap between flight operations and security safeguarding. Annex 6 focuses on the technical aspects of aircraft operation—such as flight planning, equipment, and crew duties—but these operational elements often overlap with security requirements. Doc 9811 provides the "how-to" for operators to ensure that their daily flight activities comply with anti-interference standards, such as cockpit door security and the management of unruly passengers. icao doc 9811 pdf link
ICAO Doc 9811 is a document published by the International Civil Aviation Organization (ICAO), which provides guidelines and recommendations for the implementation of Performance-Based Navigation (PBN) in the aviation industry. A more comprehensive manual on overall security operations
ICAO Doc 9811, titled the Manual on the Implementation of Security Provisions of Annex 6 icao doc 9811 pdf link