To encourage voluntary action on the part of its population, Israel created a Civil Guard in June 1974. Legislation provides for upgrading the level of physical protection extended to public installations and organizations of national significance. To deal effectively with terrorism, Israel employs three types of anti-terrorist forces, all operating within the context of the Israel National Police: the Bomb Disposal Unit; the Special Anti-Terrorist Unit attached to the Border Guard; and the Civil Guard's emergency units. Israel has developed tools, equipment, and techniques to prevent terrorist events including both sophisticated laboratory and field tests. Law enforcement and military agencies now recognize the need to integrate and coordinate their efforts in the war against terror. To facilitate international cooperation, Israel created a data center to gather and disseminate information on terrorist activity. The center's operation is based on international cooperation against terrorism in several spheres: free exchange between nations of nonclassified evidence used in terrorist trials; increased implementation of deportation procedures; and exchange of legal expertise and experience.