ABSTRACT
Despite the general European Economic Community (EEC) commitment to create the area of free movement, some Member States had not been able to agree on the abolition of checks on common borders for more than 25 years and it impelled intergovernmental initiatives out of the EEC framework. Schengen Information System (SIS) is one of very few centralised systems of the European Union (EU) and the biggest in terms of content. SIS contains alerts on persons and objects that are somehow linked to the alternation of internal security. Information exchange through the SIS started in 1995 between seven countries: Belgium, France, Germany, Luxembourg, Netherlands, Portugal and Spain. The package of modifications proposals by the European Commission on December 21, 2016 includes broadening the right of access of Europol to all categories of alerts and granting it to other EU agency – European Border and Coast Guard Agency.
