Question: In Lawful Interception (LI) as per 3GPP security standards, how are multiple Law Enforcement Agencies (LEAs) handled when they have separate interception interests in the same target?
Option 1: All LEAs must share a single interception stream for the target, with filtering done at the LEA's end.
Option 2: The network cannot support multiple LEAs intercepting the same target simultaneously.
Option 3: Interception is only allowed for one LEA per target at any given time to prevent conflicts.
Option 4: It shall be possible to strictly separate these interception measures, allowing each LEA's request to be handled independently.
Explanation: This is correct because the standard emphasizes the ability to "strictly separate these interception measures" when a single target is of interest to different LEAs. This implies that the system must support independent handling of each LEA's interception request for the same target, ensuring confidentiality and integrity of the intercepted information for each agency involved. This requirement reflects the need for flexible and secure management of lawful intercepts in telecommunications networks.