- The Constitution of the Republic of Croatia (Official Gazette 56/1990, 135/1997, 08/1998, 113/2000, 124/2000, 28/2001, 41/2001, 55/2001, 76/2010, 85/2010, 85/2010 i 05/2014)
- The Security and Intelligence System Act (Official Gazette 79/2006 i 105/2006-amendments)
- National Security Strategy of the Republic of Croatia (Official Gazette 73/2017)
- Homeland Security Act (Official Gazette 108/2017)
- Electronic Communications Act (Official Gazette 76/2022)
- Criminal Procedure Act (Official Gazette 152/2008, 76/2009, 80/2011, 121/2011, 91/2012, 143/2012, 56/2013, 145/2013 i 152/2014 , 70/2017, 126/2019, 130/2020 i 80/2022)
- Police Powers and Responisibilities Act (Official Gazette 76/2009, 92/2014 i 70/2019)
- Defence Act (Official Gazette 73/2013, 75/2015, 27/2016, 110/2017, 30/2018 i 70/2019)
- Information Security Act (Official Gazette 79/2007)
- Data Secrecy Act (Official Gazette 79/2007 i 86/2012)
- Regulation on Information Security Measures (Official Gazette 46/2008)
- Regulation on National Security Requirements of the Republic of Croatia for Individuals and Legal Entities in Telecommunications (Official Gazette 64/2008 i 76/2013)
- Ordinance on the Appearance, Content and the Right of Use of the Official ID Card and Badge of the Operational and Technical Centre for Telecommunications Surveillance's Official Personnel (Official Gazette 129/2008)
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