This law amends the Schengen Information System Act to allow registration of individuals from non-Schengen countries suspected of involvement in terrorism or other serious crimes. Registrations are based on data from third countries or international organizations provided by Europol, which must be verified and analyzed before entry. When such individuals are identified in the system, police, border authorities, and customs must collect information and notify the registering country and Europol. The law also enables linking registrations to various items such as vehicles, weapons, and identity documents to facilitate searches.