http://www.legislation.gov.uk/eur/2018/1861/article/1Regulation (EU) 2018/1861 of the European Parliament and of the Council of 28 November 2018 on the establishment, operation and use of the Schengen Information System (SIS) in the field of border checks, and amending the Convention implementing the Schengen Agreement, and amending and repealing Regulation (EC) No 1987/2006Regulation (EU) 2018/1861 of the European Parliament and of the CouncilRegulation (EU) 2018/1861 of the European Parliament and of the Council of 28 November 2018 on the establishment, operation and use of the Schengen Information System (SIS) in the field of border checks, and amending the Convention implementing the Schengen Agreement, and amending and repealing Regulation (EC) No 1987/20062020-12-10King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:02018R1861-20190611texttext/xmlen2019-06-11 CHAPTER I <Strong>GENERAL PROVISIONS</Strong> General purpose of SIS Article 1 The purpose of SIS shall be to ensure a high level of security within the area of freedom, security and justice of the Union, including the maintenance of public security and public policy and the safeguarding of security in the territories of the Member States, and to ensure the application of the provisions of Chapter 2 of Title V of Part Three TFEU relating to the movement of persons on their territories, using information communicated through this system.