scope:

The present document gives guidance for lawful interception of telecommunications in the area of co-operation by network operators, access providers, and service providers. It provides a set of requirements relating to handover interfaces for the interception by law enforcement and state security agencies. Requirements with regard to telecommunications services provided from areas outside national boundaries are not fully developed yet and therefore only some preliminary requirements have been annexed for information.

The present document describes the requirements from a Law Enforcement Agency's (LEA's) point of view.

Not all requirements necessarily apply in one individual nation.

These requirements need to be used to derive specific network requirements and furthermore to standardize handover interfaces.