 Major international events such as the Football World Cup and the Olympic Games present a range of policing and security challenges for host countries, as well as taking place in large, complex and often dispersed locations. Such events can attract a range of criminal activities from disorder environments to cyber attacks and terrorism. Host countries and event owners are faced with the challenge of providing a smooth running and successful event whilst keeping participants and spectators safe and secure. Established by Interpol in 2012 in partnership with Qatar, Project Study was designed to create a centre of excellence to help Interpol member countries plan and undertake policing and security preparations for major international events. With its global network of experts in 192 member countries, Interpol is ideally placed to serve as a centralized international hub for research, design, planning, coordination and training to help meet these challenges all within a secure structure that assures the highest standards and confidentiality. Over the past five years, the learning accrued through Project Study from member countries that have successfully hosted major international events has been consolidated in a state-of-the-art web-based knowledge management system with two central components. First, a comprehensive knowledge repository of good practices in all aspects of major event security. And second, an online collaborative platform where experts in the field can share, discuss, analyse and publish information on evolving aspects of major international events' safety and security. By bringing together the experiences, best practices, success stories and lessons learned from Interpol member countries, Project Study's knowledge management system is part of its legacy to help future hosts strengthen their own preparations with the very latest knowledge and expertise. In partnership with Qatar, Project Study underscores the global commitment of Interpol in shaping best security practices for the benefit of all its member countries to help make the world a safer place.