Based on the situation you described, it does not constitute a crime. Even if a record is kept on the record, that is, in terms of public security matters, generally speaking, there will be no impact.

The collection of fingerprints and blood samples is not for record keeping. Don’t worry, it will not have any impact on you personally. It is just to enrich the police’s file database and facilitate future investigation.

The police station only registers you. If you commit a crime, it will be easy to catch you.