The Czech Personal Data Protection Office issued an opinion on
the situation when persons must identify themselves when entering
certain buildings (i.e. by showing their ID or providing other
personal data). The Office declares that protection of property is
an important right of every subject, and therefore, collecting a
certain amount of personal information to protect the property and
to subsequently identify the person entering the building is a
legitimate measure. Such personal data shall only be collected in
the scope necessary and should be kept for a reasonable time period
only (no more than a few weeks). It is sufficient to require only
the first and last name of the subject entering the building. It is
unacceptable to make copies of personal ID cards without the
explicit consent of the person.
