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Work was initiated on Electronic Registered Delivery Services We began new work on an interface for communication
and Registered EMail (REM) services. among Law Enforcement Monitoring Facilities to support (as
a minimum) European Investigation Orders related to LI and/
We also began work on three new specifications related to or RD, which will include the handling of real-time and stored
signature validation reports and TSPs providing AdES digital data transfer.
signature validation services. We made good progress with
enhancements to the CAdES and XAdES signature formats to We produced, and later in the year revised, a new
support the Evidence Record (ERS and XMLERS). specification which defines a specific electronic interface
between two systems for warrants for the exchange of
A new TS on PAdES document time-stamp digital signatures information relating to the establishment and management
was published which specifies a type of PDF digital signature of LI.
using a document time-stamp to prove the integrity and
existence of a PDF document. We made good progress with a new specification for an
internal network interface X1 for LI-related messages over
We worked as a partner in the Electronic Simple European Handover Interface 1 (HI1), which will cover wide area
Networked Services (e-SENS) Large Scale Pilot Project, with connections between LI systems and, depending on the
the goal of developing a European solution for eJustice, eID, network, several network elements from different vendors.
eDelivery and eSignatures. We began work on two new specifications for interfaces X2
and X3 for messages to HI2 and HI3 respectively.
Lawful Interception and Data Retention We updated the specification defining a dictionary of
Lawful Interception and Retained Data (RD) play a crucial role common parameters. Other issues addressed in 2016
in helping law enforcement agencies to investigate terrorism included the security of LI and data retention systems and
and serious criminal activity. the dynamic triggering of interception.
In 2016 our Lawful Interception committee (TC LI) continued Work continued on the development of two new Special
to update our LI and RD standards, specifications and reports Reports: one will provide a guide to LI and RD standards and
in line with the latest developments. This included our TS on concepts and the other will offer guidance on LI for LTE™
the handover interface for the request and delivery of RD in the form of Frequently Asked Questions. Other ongoing
and the seven-part TS on the handover interface and service- work included the LI requirements of NFV, and updating our
specific details for Internet Protocol (IP) delivery. specification for an LI interface for Terrestrial Trunked Radio
(TETRA).

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