Electronic Warrant Module for Lawful Interception

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Solution Overview

Problem

Current lawful interception and data retention systems lack an automatic mechanism to prevent unauthorized use, allowing unapproved interceptions or queries, and do not prevent law enforcement agencies from accessing data related to public officials, which can lead to illegal activities going undetected until supervision.

Innovation Solution

An enhanced warrant management system with an electronic warrant module that includes a blacklist of immune users, digitally signed and verified, to ensure only authorized users can set targets for interception or query data retention, preventing illegal access by automatically checking warrants before allowing actions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If manual warrant verification is used, then system operation flexibility is maintained, but unauthorized interception or querying cannot be prevented in real-time

Engineering Contradiction:
Improveprevention of unauthorized interceptionVSAvoidautomatic warrant verification
Core Design Contradiction:
ReliabilityVSExtent of automation

Solution Approach 1:

The system performs preliminary actions by storing warrant information in advance in a warrant information module before any interception or querying operation occurs. When an interception or data retrieval request is made, the system automatically compares the request against the pre-stored warrant information to verify authorization, enabling real-time prevention of unauthorized actions without manual intervention.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If all commands are traced for supervision, then unauthorized use can be detected, but detection only occurs after unauthorized use has been performed

Engineering Contradiction:
Improvedetection of unauthorized useVSAvoidtime delay in detecting unauthorized use
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system applies preliminary anti-action by proactively preventing unauthorized interception or querying before it can occur. The automatic verification mechanism checks each command against stored warrant information in real-time, blocking unauthorized actions at the source rather than merely detecting them after execution, thus eliminating the time delay in prevention.

Inventive Principle:
Principle #9Preliminary anti-action

3Reliability

If no automatic mechanism is implemented, then system complexity is reduced, but public officials cannot be protected from unauthorized data access

Engineering Contradiction:
Improveprotection of public officials' dataVSAvoidautomatic verification mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The system introduces an intermediary component - the warrant information module - that acts as a mediator between interception/querying commands and the actual data access operations. This module stores warrant information and automatically verifies whether commands to intercept or query data about public officials are authorized, providing protection without requiring complex manual verification procedures.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentEP2345222B1Lawful authorities warrant management
Publication Date: 2016.08.24 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • EP2345222B1 patent drawingFigure 1
  • EP2345222B1 patent drawingFigure 2
  • EP2345222B1 patent drawingFigure 3

AI summary

A method is proposed for managing requests from Law Enforcement Agencies for interception or retention of data relating to a target user. The method detects a request of interception or retention on the target user and verifies whether an electronic warrant is activated with respect to the user.