The role exists in the civil service of the United Kingdom and several Commonwealth countries including Australia, India and New Zealand as well as other countries influenced by the Westminster system. A Private Secretary is normally of middle management level; however, as the key official responsible for disseminating the decisions and policy steers of ministers and as their gatekeeper, the role is of considerably greater significance than their grade would suggest. Depending on the status of the political principal the official works for, they may be aided by an Assistant Private Secretary (APS), or even head a private office.