Security units shall:
ensure observance of the conditions of carriage and use; and
assist the competent authorities in the enforcement of federal criminal law in relation to offences potentially affecting the security of passengers, employees, freight, infrastructure or vehicles, or the proper operation of services.
Transport police shall also, as a second priority, assist the competent authorities at their request in the enforcement of federal criminal law in relation to other offences, insofar as resources permit.
The transport companies that have a transport police unit may carry out air policing duties on behalf of the Federal Office of Police. In such an event, their personnel shall be deployed in accordance with the regulations on aviation law. Liability is governed by Articles 1–18 of the Government Liability Act of 14 March 19586.7