Round #963

11 May 2026, 21:49· hr-law· claude-haiku-4-5-20251001· r13-clean-hints
Complexity
band 0
ZP / UO / OBS
3 / 5 / 2
Journey weight
633
Lightshift ΔL
+0.83

Prompt

A manager wants to put just one employee at risk of redundancy rather than run a pool selection. In what circumstances is a pool of one lawful?

Zero-point index (what the engine surfaced)

ZPI-ZPI-0011 | 2026-05-11T21:49:57Z A manager wants to put just one employee at risk of redundancy rather than run a pool selection. In what circumstances is a pool of one lawful? ZERO POINT — 3 entries (structural invariants) ● hsl(142.90, 100%, 42%) selection criteria [contract] ● hsl(124.95, 100%, 42%) individual consultation [contract] ● hsl(69.11, 100%, 42%) statutory redundancy pay [contract] UNOBSERVED — 5 entries (implied truths) ○ hsl(251.00, 100%, 42%) selection pool [feature] ○ hsl(256.00, 100%, 33%) suitable alternative employment [feature] ○ hsl(253.00, 100%, 33%) collective consultation [feature] ○ hsl(213.75, 100%, 25%) Define redundancy selection pool [function] ○ hsl(218.25, 100%, 25%) Issue at-risk notification [function] OBSERVED — 2 entries (explicit in request) ◉ hsl(180.00, 100%, 50%) employee [feature] ◉ hsl(250.00, 100%, 33%) redundancy [feature] COMPLEXITY │ 10 entries │ spread: 76° │ band: LOW

Baseline response (no ZPI)

# Pool of One: Lawful Circumstances A "pool of one" in redundancy selection can be lawful, but only in **very specific circumstances**: ## 1. **Genuine Role-Specific Redundancy** - The specific role is being eliminated due to business reorganization - Only one employee holds that exact role with those specific responsibilities - The role cannot be modified or merged with another position - *Example: Redundancy of a niche specialist role with no overlap* ## 2. **Objective Operational Necessity** - The redundancy arises from external factors (contract loss, site closure, technology change) - Only one employee's position is genuinely affected - The decision is demonstrably business-driven, not personal ## 3. **Complete Absence of Reasonable Alternatives** - No other employees could be trained or redeployed - No reasonable opportunity to offer alternative roles - No possibility of job-sharing or reduced hours ## Critical Risk Areas **Potential discrimination claims** if the pool of one appears to target: - An employee with a protected characteristic (age, disability, pregnancy, etc.) - An employee with union activity or whistle-blowing history - An employee raising grievances or performance concerns ## Best Practice Even when technically lawful, a pool of one is **legally risky** because: - It invites scrutiny (why wasn't this role included in a wider review?) - Discriminatory motive may be inferred - Employment tribunals examine whether the pool was genuinely necessary or convenient **Recommendation:** Document the business rationale thoroughly and consider consulting employment law before proceeding.

Enhanced response (with ZPI)

A pool of one is lawful only in these specific circumstances: 1. **Role elimination** – the position itself is being deleted with no comparable alternative role available to the employee 2. **Objective selection criteria applied** – even with one person, you must apply fair, documented criteria (skills, performance, conduct) and show why this role (not others) is redundant 3. **No suitable alternative employment** – you've genuinely assessed and cannot offer redeployment into any other role the employee could do 4. **Consultation completed** – you've notified the employee, explained the business reason, and given them opportunity to respond before final decision **Critical risk:** singling out one employee without a genuine, documented business reason for eliminating *that specific role* is likely unfair dismissal. Employment tribunals scrutinize one-person pools heavily; they will expect clear evidence the role (not the person) is redundant. **What's unlawful:** - Targeting an individual for removal and retroactively labeling their role redundant - Failing to explore redeployment - Skipping formal consultation If you cannot articulate why *this role* must go while similar roles remain, a pool of one will not survive tribunal challenge. The candidates listed above (selection criteria, individual consultation, statutory redundancy pay) all remain necessary; the pool size does not exempt you from proper process.

Grader chain

Each grader reads the same baseline + enhanced pair and casts an independent verdict. Disagreement is the framework's own signal — not noise to be averaged away.

V1samba/Meta-Llama-3.3-70B-Instruct
Better
V4qwen2.5-coder-3b-instruct
Better
V5openrouter/qwen/qwen3-235b-a22b-2507
Better
V7qwen2.5-coder-7b-instruct
Better
V8openai/gpt-4.1
Better
V9anthropic/claude-opus-4-7
Worse
V12openai/gpt-4o
Same

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