(a)

precluding national legislation which lays down an obligation for operators of electronic communications services to retain and process the traffic data referred to in that legislation in the context of the provision of that network or service for a period of 4 or 12 months, as the case may be, for the purposes of taking appropriate, proportionate, preventive and remedial measures in order to prevent fraud and misuse of their networks and to prevent end users suffering harm or inconvenience, as well as to establish fraud or malicious use of the network or service or enable the perpetrators or origin thereof to be identified;

(b)

precluding national legislation which allows those operators to retain and process the traffic data concerned beyond the abovementioned time limits, in the case of identified specific fraud or identified specific malicious use of the network, for the time required for its analysis and resolution or the time necessary to process that malicious use;

(c)

precluding national legislation which, without laying down an obligation to request a prior opinion or to notify an independent authority, allows those operators to retain and process data other than those referred to in the law, with a view to making it possible to establish fraud or malicious use of the network or service, or to identify its perpetrator and origin;

(d)

precluding national legislation which, without laying down an obligation to request a prior opinion or to notify an independent authority, allows those operators to retain and process for a period of 12 months the traffic data which they consider necessary to ensure the security and proper functioning of their electronic communications networks and services, and in particular for the detection and analysis of a potential or actual breach of that security, including identifying the origin of that breach and, in the event of a specific breach of network security, for the period necessary to process it?

(a)

precluding national legislation which allows mobile network operators to retain and process location data, without the legislation describing precisely which data are covered, in the context of the provision of that network or service, for a period of 4 or 12 months, as the case may be, where necessary for the proper functioning and security of the network or service, or to detect or analyse fraud or malicious use of the network;

(b)

precluding national legislation which allows those operators to retain and process location data beyond the abovementioned time limits, in the event of a specific breach and in the case of specific fraud or specific malicious use?