The Schengen Information System II (SIS II) is the largest shared database in Europe on maintaining public security, supporting police and judicial co-operation and managing external border control. Participating States` Authorities provide entries, called „alerts“, on wanted and missing persons, lost and stolen property and entry bans.
SIS II is a computer network system containing information on wanted persons, missing persons, stolen objects and vehicles. The SIS II can be consulted by police, border police, customs and partially by authorities responsible for issuing visas and residence permits. It enables its users to check persons and objects both at external borders and within the territory of the Schengen States. The Schengen States are therefore the owners of the data they introduce into the SIS II and bear responsibility for their accuracy.
SIS II contains the following categories of data:
1. alerts on third-countries` nationals, who have to be banned from entering the Schengen area;
2. alerts on persons, wanted for arrest or extradition;
3. alerts on missing persons;
4. alerts on missing persons who have to be placed under protection and/or whose whereabouts have to be established;
5. alerts on persons wanted for the purposes of penal proceedings;
6. alerts on persons and objects, that have to be put under a discreet surveillance;
7. alerts on objects, subject to confiscation or will be used as an evidence in penal criminal proceedings.
