protection of a threatened person, basically implying "secret identity", accessible only to certain members of the police force and explicitly authorised officials. Switzerland At the federal level, classified information in Switzerland is assigned one of three levels, which are from lowest to highest: Internal, Confidential, Secret. Respectively, these are, in German, , , ; in French, , , ; in Italian, , , . As in other countries, the choice of classification depends on the potential impact that the unauthorised release of the classified document would have on Switzerland, the federal authorities or the authorities of a foreign government. According to the Ordinance on the Protection of Federal Information, information is classified as Internal if its "disclosure to unauthorised persons may be disadvantageous to national interests." Information classified as Confidential could, if disclosed, compromise "the free formation of opinions and decision-making of the Federal Assembly or the Federal Council," jeopardise national monetary/economic policy, put the population at risk or adversely affect the operations of the Swiss Armed Forces. Finally, the unauthorised release of Secret information could seriously compromise the ability of either the Federal Assembly or the Federal Council to function or impede the ability of the Federal Government or the Armed Forces to act. Turkey According to the related regulations in Turkey, there are four levels of document classification: (top secret), (secret), (confidential) and (restricted). The fifth is , which means unclassified. United Kingdom Until 2013, the United Kingdom used five levels of classification—from lowest to highest, they were: Protect, Restricted, Confidential, Secret and Top Secret (formerly Most Secret). The Cabinet Office provides guidance on how to protect information, including the security clearances required for personnel. Staff may be required to sign to confirm their understanding and acceptance of the Official Secrets Acts 1911 to 1989, although the Act applies regardless of signature. Protect is not in itself a security protective marking level (such as Restricted or greater), but is used to indicate information which should not be disclosed because, for instance, the document contains tax, national insurance, or other personal information. Government documents without a classification may be marked as Unclassified or Not Protectively Marked. This system was replaced by the Government Security Classifications Policy, which has a simpler model: Top Secret, Secret, and Official from April 2014. Official Sensitive is a security marking which may be followed by one of three authorised descriptors: Commercial, LocSen (location sensitive)