In the consultation it is stated that the CNMT provides the city council with information from the database called the "SGDA" for the management of the Urban Guard emergency care system, in this context the city council raises the possibility of using this database as a means of sending SMS or call notices to its population in emergency and exceptional cases. The principle of limiting the purpose of the GDPR would prevent the city council from using the data from the database of the subscriber data management system (SGDA) provided by the CNMT for a different later purpose, such as warning the population in cases of serious emergencies. The consent of the interested parties collected in a mobile application or website could be a legitimate basis for this treatment.