The identification procedures (photographs, fingerprints, measurements, and similar measures) under public safety law do not serve to solve a specific crime, but rather the precautionary collection of data for possible future proceedings – and thus infringe upon the right to informational self-determination (Article 2 Paragraph 1 in conjunction with Article 1 Paragraph 1 of the Basic Law). This practice is now widespread, even in connection with assemblies.
The measure requires a sound negative prognosis: there must be concrete indications that the person in question will commit further offenses in the future, or will commit any offenses for the first time, and that the collected documents could further the subsequent investigations. A mere initial suspicion or a discontinued or acquittal is not sufficient on its own. Proportionality must always be maintained.
The long-term consequences are particularly serious: Once collected, data is stored and kept in police systems, often for years. Legal action should therefore be taken against unlawful data processing.


