Physical Security Arrangements in Commonwealth Agencies, No.23 2002-2003 Protective security involves the total concept of information, personnel, physical, information technology and telecommunications security. The Commonwealth's Protective Security policy is outlined in the Protective Security Manual (PSM). It provides specific guidance to agencies on the protection of the Commonwealth's assets, personnel and clients from potential security threats. This audit evaluated the protective security policies and practices of seven Commonwealth agencies to determine whether they had established an appropriate physical security control framework based on the principles outlined in Part E of the Commonwealth's Protective Security Manual. The ANAO also examined whether agencies had considered the risks of, and developed an appropriate policy statement on, the physical security arrangements for employees who work from home.