Round #974

12 May 2026, 13:36· hr-law· gpt-4.1· r13-clean-hints

Complexity: band 0
ZP / UO / OBS: 3 / 3 / 2
Journey weight: 452
Lightshift ΔL: +0.00

Prompt

An employee has raised a formal grievance against their line manager. Can the same manager chair the grievance hearing or must it be someone independent?

Zero-point index (what the engine surfaced)

ZPI-ZPI-0003 | 2026-05-12T13:36:14Z An employee has raised a formal grievance against their line manager. Can the same manager chair the grievance hearing or must it be someone independent? ZERO POINT — 3 entries (structural invariants) ● hsl(157.40, 100%, 50%) ACAS Code of Practice [contract] ● hsl(280.96, 100%, 50%) appeal right [contract] ● hsl(46.93, 100%, 24%) grievance investigation [contract] UNOBSERVED — 3 entries (implied truths) ○ hsl(224.00, 100%, 39%) ACAS Code of Practice [feature] ○ hsl(230.00, 100%, 50%) right to be accompanied [feature] ○ hsl(231.00, 100%, 50%) appeal right [feature] OBSERVED — 2 entries (explicit in request) ◉ hsl(180.00, 100%, 50%) employee [feature] ◉ hsl(232.00, 100%, 34%) grievance [feature] COMPLEXITY │ 8 entries │ spread: 52° │ band: LOW

Baseline response (no ZPI)

No, the same manager **should not** chair the grievance hearing. It must be someone independent. **Explanation:** - According to best practice and the ACAS Code of Practice on Disciplinary and Grievance Procedures (which is widely followed in the UK), the person who is the subject of the grievance (in this case, the line manager) should not be involved in hearing or deciding the grievance. - The hearing should be chaired by someone impartial and independent—ideally a manager from another department or a more senior manager who has not been involved in the matter. - This ensures fairness, avoids bias, and upholds the integrity of the grievance process. **Summary:** The manager who is the subject of the grievance must not chair the hearing; it should be handled by an independent person.

Enhanced response (with ZPI)

The grievance hearing should be chaired by someone independent and not the line manager who is the subject of the grievance, to ensure impartiality and fairness in line with the ACAS Code of Practice.

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

Same

V7qwen2.5-coder-7b-instruct

Same

V8openai/gpt-4.1

Same

V9anthropic/claude-opus-4-7

Better

V12openai/gpt-4o

Worse

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