The initial amalgamation of all police and security elements of the CF was first effected in October 1964 by the formation of the Directorate of Security at Canadian Forces Headquarters. With the introduction of the forces Functional Command structure in April 1966, the security staffs and PMs in existing single service command organizations were eliminated, the command and base security officers were appointed at the newly formed HQs and the various investigative elements of the Services were amalgamated into a single organization called the Special Investigation Unit (SIU). To achieve a common approach throughout the forces, security and police functions were regrouped into three main categories: (1) personnel security, (2) police and custody, and (3) security of information and materiel. A single trade of Military Police was created which replaced five trades that previously existed and provided standards for the training required of all non-commissioned members employed in the police and security field. In June 1966, Major General Gilles Turcot was directed to examine the role, organization and responsibility for Security in the CF and to make recommendations for any revisions.