What can people demand regarding their data?
Everyone, irrespective of their citizenship, has the right to know what data about them has been entered in the Schengen Information System. They also have the right to demand correction or deletion of incorrect data.
In order to do this, they have to contact the data protection authority in their selected country of destination. Access to data is allowed according to the laws of the selected country.
The data concerning a person are issued to them if it is not prohibited by law. Refusal to issue data must be justified in writing.
Any person who wants to know how to learn about data, correct or delete them may contact the relevant institution of any Schengen country.