scope:

The present document specifies Stage 1 Lawful Interception requirements for 3GPP networks and services.

Regional interception requirements can be satisfied by meeting the correct subset of requirements from the present document. Which CSP services are subject to Lawful Interception is defined by national regulations.

The presence of a requirement in the present document does not in itself imply or mandate that a 3GPP operator has an obligation to implement any network service capability, which is not otherwise required to meet LI obligation compliance in relation to specific regulated services, offered by that 3GPP operator. Only those specific requirements and sub-clauses of the present document which are applicable to specific network and/or service capabilities implemented in a 3GPP operator's network will be considered in scope for that operator. In all cases, laws and regulations define which requirements are applicable to 3GPP operators in each country relative to the services offered by each 3GPP operator.

As such not all requirements in the present document will apply in all national jurisdictions or to all 3GPP operator deployments (e.g. if an operator does not offer voice services, then voice LI requirement in the present document do not apply).

The interception system defined in the present document provides LI based on specific target identifiers.