1. 1 TC LI ETSI Technical Committee Lawful Interception ETSI/TC LI Peter van der Arend (Royal KPN) Chairman ETSI/TC LI

2. 2 Why LI The providers of public telecommunications networks and services are legally required to make available to the authorities the information necessary to enable them to investigate telecommunications.

3. 3 History ETSI/TC Security Techniques Advisory Group (STAG) (1991) ETSI/TC Security (TC SEC) –Working Group Lawful Interception (SEC-WGLI) (1997) ETSI/TC Lawful Interception (TC LI) (Oct 2002)

4. 4 Terms of Reference To develop a suite of standards that allow ETSI standards to support industry compliance to the requirements of national and international law. To capture the requirements of “Law Enforcement Agencies” and translating those into requirements to be applied to technical specifications. To develop and publish handover interfaces, and of rules for the carriage of technology specific interception across these interfaces.

5. 5 Relationships inside ETSI 3GPP (SA3-LI) (LI for UMTS) TC AT (LI for IP Cablecom) TC SPAN & EP TIPHON ---> TISPAN PLT (LI for Powerline Communications) EP TETRA TC MTS

6. 6 Relationships outside ETSI National and Regional Law Enforcement Agencies OASIS (TC LegalXML-LI) T1S1 LAES AHG ANSI

7. 7 Participation in TC LI Law Enforcement Agencies –NL, UK, DE, AS, USA, IT, CA, FR, FIN, RU Operators –KPN, BT, DT, Telia, Inmarsat, T-Mobile, Vodafone, Telenor, Telstra Manufacturers (switch) –Nokia, Siemens, Ericsson, Alcatel, Cisco, Marconi, Nortel, Lucent Technologies Manufacturers (mediator / LEA equipement) –Aqsacom, ETI, VeriSign, TopLayer, GTEN, Verint, Pine, Nice

8. 8 LEA requirements LEATS 101 331: Requirements of Law Enforcement Agencies –Provides guidance in the area of co-operation by network operators/service providers with the lawful interception of telecommunications. –Provides a set of requirements relating to handover interfaces for the interception.

9. 9 Other specifications ES 201 158 Requirements for Network Functions ES 201 671 / TS 101 671 Handover Interface for the Lawful Interception of Telecommunications Traffic TR 102 053 Notes on ISDN LI functionalities TR 101 943 Concepts of Interception in a Generic Network Architecture. TR 101 944 Issues on IP Interception.

10. 10 Handover Interface Concept

11. 11 Latest published specifications Delivery of IP based interception TS 102 232 HI2 and HI3 interfaces for handover via IP networks Service specific details for E-Mail Services TS 102 233 Description for handover of E-mail messages Service specific details for Internet Access Services TS 102 234 Description for handover of Internet Access Information and TCP/IP information

12. 12 Relation TS 102 232 to other standards TS 102 232 Generic Headers TS 102 234 TS 102 233 Internet access service details E-mail service details Handover manager Delivery session Transport layer Network layer Service- specific details Other standards Delivery network Application Presentation Session Transport Network and below

13. 13 Actual working issues DTR 00014: Lawful Interception of public Wireless LAN Internet Access General update of: TR 101 943 Concepts of Interception in a Generic Network Architecture Keeping up to date of the LI specifications

14. 14 LI standards in 3GPP (UMTS) TS 133 106 Lawful interception requirements TS 133 107 Lawful interception architecture and functions TS 133 108 Handover interface for Lawful Interception

15. 15 Future developments Lawful Interception of IP Cablecom Lawful Interception of TIPHON Lawful Interception of third generation mobile systems Maintenance of existing documents; especially ES 201 671 / TS 101 671 and TS 101 331.

16. 16 More details on ETSI/TC LI can be found on: http://portal.etsi.org/li/Summary.asp

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