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National citizen
“NATIONAL CITIZEN” refers to a person who has citizenship of your country, acquired by birth or naturalisation, whether by declaration, choice, marriage or other means according to national legislation.
For both UN-CTS data collection and statistical purposes, this variable should include the national citizens with dual-nationality.

[Sources: International Classification of Crime for Statistical Purposes (ICCS), UNODC, Mar 2015, p.100, footnote 167. Web:
What is the ICCS?
The United Nations Survey of Crime Trends and Operations of Criminal Justice Systems (UN-CTS) Data questionnaire, Definition Index, Crime Disaggregation variables, UNODC, 2017.
What is the UN-CTS?]