§ 20 DSG NRW
Video surveillance
(1)The processing of personal data in publicly accessible areas by means of opto-electronic devices (video surveillance) by public bodies shall be permissible where this is
(2)1. for the exercise of domiciliary rights,
(3)2. for the protection of life, health, property or possession, or
(4)3. for the control of access authorisations
(5)necessary and there are no indications that the legitimate interests of the data subjects prevail.
(6)The fact of video surveillance, the information pursuant to Article 13(1)(a) to (c) of Regulation (EU) 2016/679, and the possibility of obtaining the further information pursuant to Article 13 of Regulation (EU) 2016/679 from the controller, shall be made recognisable by appropriate measures at the earliest possible point in time.
(7)The processing of data collected pursuant to paragraph 1 for another purpose shall be permissible only insofar as this is necessary for the prevention of dangers to public safety, for the prosecution of criminal offences or for the assertion of legal claims against data subjects, and there are no indications that the legitimate interests of data subjects prevail.
(8)Data collected pursuant to paragraph 1 shall be erased without delay. This shall not apply insofar as the data are necessary for the prevention of dangers to public safety, for the prosecution of criminal offences or for the assertion of legal claims against the data subject.
(9)Section 2
(10)Special processing situations outside the scope of application of Regulation (EU) 2016/679