For a long period of time, Canada and the United States have been partners due to their shared border creating a stable, natural bond. Also, for a very long period of time the border has not been a source of any concerns with respect to mutual security. However, the tragic events of September 11, 2001, have had a determining effect on the issue of national and continental security. A formal negotiation process has started between Canadian officials and United States officials to ensure border security. This speech delivered at the Sixth Biennial Conference on International Perspectives on Crime, Justice and Public Order, held in June 2002 discusses the law enforcement partnership at the Canada and United States border. Based on a research project, it examines the impact of organized crime in Canada through partnership at the border. It is directly about the implementation of partnerships with respect to cross-border issues between Canada and the United States. The paper discusses border issues, collaborative partnerships, partnership at the border, and lessons learned with respect to partnership for law enforcement agencies. With respect to partnerships for law enforcement agencies, it addresses anticipated impact of partnerships, unanticipated outcomes, and critical success factors.