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
BetterV4qwen2.5-coder-3b-instruct
BetterV5openrouter/qwen/qwen3-235b-a22b-2507
BetterV7qwen2.5-coder-7b-instruct
BetterV8openai/gpt-4.1
BetterV9anthropic/claude-opus-4-7
WorseV12openai/gpt-4o
SameComments
Our grader said what it said. What do you say? Comment as a guest below.
No comments yet. Be the first to say what you make of this round.