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DOC MT–CF1 Participation Infrastructure Standard Rev. 2026.07 UK·EU·US

Most collective actions
don’t fail on law.
They fail on participation.

Claimant First from Mediatasks is the system that prevents that.

Most cases don’t break in the courtroom. They break earlier — when participation fails to reach the level the case depends on.

Fig. 0 — The claimant lifecycle. Seven stages, one governed system. Select a stage — detail at Clause 05.
Tab 02 · The problem MT–CF1 / 002
Clause 02 The problem

The existing model is breaking

Most teams still treat participation as a PR problem.

It isn’t. It’s a systems problem.

The current model was never designed to deliver structured participation at scale:

  • Aggressive transactional bookbuilding
  • Fragmented claimant journeys
  • Comms full of legal jargon
  • Last-minute fixes

And that’s why cases start to break.

Tab 03 · Failure patterns MT–CF1 / 003
Clause 03 Failure patterns · observed

Where participation fails

Participation breakdown isn’t random. It follows predictable patterns:

F–01

High traffic, low-quality claimants

Budget burned on registrations that can never book.

→ Resolved at Stage 02 · AcquisitionStage 02 · CF1Structured intake that qualifies claimants as it converts them.
F–02

Significant drop-off post registration

The book you report is larger than the book you hold.

→ Resolved at Stage 05 · EngagementStage 05 · CF1Consistent, human-first communication across the life of the case.
F–03

Confusion at first interaction

Claimants disengage before they understand the claim.

→ Resolved at Stage 03 · OnboardingStage 03 · CF1Plain-language journeys that build comprehension at first contact.
F–04

Hesitation driven by lack of trust

Interest that never converts into signed participation.

→ Resolved at Stage 05 · EngagementStage 05 · CF1Consistent, human-first communication across the life of the case.
F–05

Incomplete, unusable claimant data

Validation costs surface late, when options are limited.

→ Resolved at Stage 04 · ValidationStage 04 · CF1Verification designed into the journey, not bolted on at the end.
F–06

Poor cross-market performance

What worked in one jurisdiction quietly fails in the next.

→ Resolved at Stage 01 · AwarenessStage 01 · CF1Eligibility-first messaging in the channels claimants already use.

Most teams recognise this too late — when options are already limited.

Tab 04 · Recorded result MT–CF1 / 004
Clause 04 Measured performance

33.4%

Participation is measurable — and recoverable.

In the UK Diesel NOx Emissions claims, structured re-engagement under CF1 returned 33.4% of lapsed registrants to active participation — claimants the conventional model had already written off.

That is the difference between treating participation as a marketing output and running it as governed infrastructure: performance can be measured, diagnosed and recovered at every stage of the lifecycle.

Cohort
Diesel NOx Emissions
Jurisdiction
United Kingdom
Metric
Lapsed registrants returned to active participation
Tab EX · Exhibits MT–CF1 / 005
The Royal Courts of Justice, London, at dusk in light rain
London · UK · CAT & group litigation
United States Courthouse, New York, at blue hour
New York · US · Rule 23 class actions
Amsterdam canal ring at dusk, gabled houses reflected in the water
Amsterdam · NL / EU · WAMCA collective actions
Exhibits A–C Participation is human — and jurisdictional. Behind every registration number is a person deciding whether to trust a process they didn’t choose, in London, New York or Amsterdam. CF1 is designed for them, wherever the case sits.
Tab 05 · The system MT–CF1 / 006
Clause 05 The system

CF1 — The Claimant First System

The system that determines whether participation succeeds or fails.

CF1 replaces fragmented, campaign-led execution with a structured model built around how real people engage with claims. This isn’t marketing. This is infrastructure.

Stage 01 / 07 — AWARENESS

What CF1 does here: Eligibility-first messaging in the channels claimants already use.

Without it: high-volume noise that attracts the wrong registrants.

Fig. 1 — CF1 lifecycle schematic. Select a stage for detail. Mediatasks operates the full claimant lifecycle.
Tab 06 · Pillars MT–CF1 / 007
Clause 06 CF1 pillars

Four pillars, one system

Plate I

Understanding

If claimants don’t immediately understand what this is and why it matters, they don’t engage. CF1 ensures instant comprehension — removing confusion before it creates drop-off.

Plate II

Trust

Participation is a risk decision, not just a rational one. CF1 builds trust through consistent, human-first communication — reducing hesitation and increasing action.

Plate III

Completion

Most drop-off doesn’t happen at awareness. It happens during the process. CF1 removes friction across the journey — ensuring more claimants complete, not just start.

Plate IV

Distribution

If you’re not reaching people where they already are, you’re invisible. CF1 delivers participation through channel-native, multi-market execution.

Tab 07 · Comparison MT–CF1 / 008
Clause 07 Before & after

From campaign execution to participation systems

This is the shift from execution to infrastructure.

Table 1 The existing model Claimant First (CF1)
How claimants are acquired Transactional bookbuilding, pushed for volume Eligibility-led acquisition, designed for completion
How journeys are structured Fragmented hand-offs across vendors and tools One governed journey, awareness to distribution
How communication reads Legal jargon, written for lawyers Plain language, written for claimants
When problems surface At validation — when options are already limited At design — before the case goes live
What the funder can evidence Registration counts Verified, defensible participation
Tab 08 · Timing MT–CF1 / 009
Clause 08 Timing

Most teams realise this too late

By the time participation underperforms:

T–01

The case is already live

T–02

The structure is fixed

T–03

The budget is committed

At that point, you’re not solving the problem. You’re managing the consequences.

Tab 09 · Position MT–CF1 / 010
Clause 09 Position

Predictable.
Preventable.
Structural.

Participation failure isn’t unpredictable. It’s the result of missing systems. CF1 exists to make participation something a case can rely on.

Appendices Not ready for a call? Start with the research.

WP–01

Evaluating Engagement Risk

A due diligence checklist for litigation funders.

Request the paper: Evaluating Engagement Risk

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WP–02

Cross-Jurisdictional Engagement

How infrastructure requirements differ across the UK, EU and US.

Request the paper: Cross-Jurisdictional Engagement

By submitting this form you agree to our Privacy Policy. Your data is processed by Mediatasks and its CRM provider in accordance with UK GDPR.

WP–03

The Claimant Engagement Infrastructure Standard

A framework for collective redress.

Request the paper: The Claimant Engagement Infrastructure Standard

By submitting this form you agree to our Privacy Policy. Your data is processed by Mediatasks and its CRM provider in accordance with UK GDPR.