LILI Assurance Fieldbookauthority · standards · evidence Open fieldbook ↗

Law · ETSI · 3GPP · Security · Assurance

Permission first.
Proof always.

Learn lawful interception as a governed technical lifecycle: validate authority, bound the scope, isolate the system, deliver correctly, stop on time, and preserve independent evidence.

Start the fieldbook ↗Explore 180 concepts

AUTHORITY → VALIDATE → PROVISION → OBSERVE → MEDIATE → HANDOVER → EXPIRE → AUDIT

Controlled authorization and handover path A validated authority passes bounded state to administration, points of interception, mediation, and an approved monitoring facility while independent evidence records each gate. VALIDATEDAUTHORITY ADMINADMF CONTROLLEDPOI APPROVEDLEMF X1 / X2 / X3HI1 / HI2 / HI3
Complete governed path
30 detailed chapters
180 concepts
60 Feynman drills
90 scored questions

Authority to evidence

Technical power needs stronger controls.

A connected curriculum across law, roles, ETSI, 3GPP, mobile/cloud architecture, delivery, privacy, security, reliability, disclosure, incident response, and oversight.
  1. 01GovernLaw, jurisdiction, stakeholders, LI versus disclosure, and reference modelCh 00–04
  2. 02ControlLifecycle, HI1/HI2/HI3, warrant interface, X1, X2, and X3Ch 05–09
  3. 03StandardizeETSI handover, IP delivery, common parameters, and 3GPP requirementsCh 10–13
  4. 04Engineer3GPP architecture/protocols, legacy coexistence, 5G, cloud, and data semanticsCh 14–19
  5. 05AssureMediation, security, audit, privacy, reliability, and conformanceCh 20–25
  6. 06CloseDisclosure, e-evidence, cross-border exchange, incidents, and NorthstarCh 26–29

One case, eight gates

Scope stays sealed.
Evidence stays alive.

Open the lifecycle →
  1. 01Authority is independently validatedlaw precedes machine state
  2. 02Technical scope is boundedidentity · service · place · time
  3. 03Functions acknowledge current stateversioned and safely expiring
  4. 04IRI and CC stay isolateddistinct trust and capacity
  5. 05Receipt and closure reconcilegaps · duplicates · expiry · audit

Governed real-life scenario

Northstar

A fictional mobile provider receives one bounded 72-hour court order and must prove every state from intake through secure handover and closure.

Defend independent validation, ETSI/3GPP versioning, state propagation, IRI/CC isolation, receiver outage, privacy-safe reconciliation, local expiry, audit, retention, and deletion.

Open the complete scenario ↗
VALIDATEPROVISIONHANDOVERCLOSEauthorize · isolate · correlate · reconcile · expire · audit

Recall, reason, prove

Learn standards as a controlled system.

Standards studioSearch 180 domain concepts and rehearse 60 Feynman explanations.Open workspace ↗ Assurance assessmentTake 90 original questions including twelve Northstar cases.Begin assessment ↗ Printable fieldbookRead the complete domain and assurance guide offline.Download PDF ↓

Standards move data. Governance controls power.

Know the authority, boundary, failure, and proof.

Open the LI fieldbook ↗