Data Protection in the Schengen Information System

The Schengen Information System (SIS) is the key instrument within the Schengen cooperation. Under the threat of terrorism and international crime governments have tried to further develop this data system into the so-called SIS II by introducing new categories of data, broader access rights and also investigative features. This move has met with opposition as there are concerns that the SIS II would not comply with European data protection standards. This article offers an introduction to data protection in the SIS. Chapter 2 addresses the genesis of the Schengen area and the SIS. It also addresses special cases like the Nordic Passport Union, the UK, Ireland and Switzerland. It explains the structure and functioning of the SIS. Chapter 3 outlines the legal bases that regulate data protection in the SIS. The interaction between the different acts is illustrated with the example of Switzerland. Chapter 4 discusses the controversial data protection issues due to which SIS II has come under criticism