Round #966
11 May 2026, 21:51· hr-law· claude-haiku-4-5-20251001· r13-clean-hints
- Complexity
- band 1
- ZP / UO / OBS
- 3 / 5 / 3
- Journey weight
- 658
- Lightshift ΔL
- +0.33
Prompt
An employee raised a grievance and then resigned before the hearing date. Do we still have to investigate and what are the risks if we do not?
Zero-point index (what the engine surfaced)
ZPI-ZPI-0013 | 2026-05-11T21:51:19Z
An employee raised a grievance and then resigned before the hearing date. Do we still have to investigate and what are the risks if we do not?
ZERO POINT — 3 entries (structural invariants)
● hsl(157.40, 100%, 50%) ACAS Code of Practice [contract]
● hsl(34.71, 100%, 50%) procedural fairness [contract]
● hsl(280.96, 100%, 50%) appeal right [contract]
UNOBSERVED — 5 entries (implied truths)
○ hsl(197.00, 100%, 26%) mutual trust and confidence [feature]
○ hsl(215.00, 100%, 26%) constructive dismissal trigger [feature]
○ 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 — 3 entries (explicit in request)
◉ hsl(180.00, 100%, 50%) employee [feature]
◉ hsl(232.00, 100%, 34%) grievance [feature]
◉ hsl(236.25, 100%, 18%) Investigate grievance [function]
COMPLEXITY │ 11 entries │ spread: 56° │ band: MEDIUM
Baseline response (no ZPI)
# Grievance After Resignation: Investigation Obligations
## Do You Have to Investigate?
**Technically, no** – you have no legal obligation to investigate a grievance after an employee has resigned. However, this requires nuance:
- Resignation terminates the employment relationship
- The grievance procedure typically becomes **moot** once employment ends
- Most grievance policies allow for suspension or closure upon resignation
**BUT:** Practical and legal considerations may override this.
---
## Key Risks of Not Investigating
### 1. **Employment Tribunal Claims**
- The resignation may be **constructive dismissal** (employee forced to resign)
- If grievance relates to harassment, discrimination, or safety:
- Failing to investigate strengthens their claim
- Suggests conditions were so poor they quit
- Tribunal may award damages even without formal dismissal
### 2. **Discrimination/Harassment Exposure**
- If grievance involved protected characteristics (race, sex, disability, etc.):
- **Duty to investigate persists** regardless of resignation
- Failure to investigate = failure to prevent discrimination
- Can expose you to complaints to the **Equality and Human Rights Commission**
### 3. **Health & Safety Issues**
- Safety concerns typically require investigation **regardless** of employment status
- Regulatory bodies (HSE) may investigate if you don't
### 4. **References & Future Disputes**
- Unresolved grievances cloud reference-giving
- May lead to defamation claims if references appear retaliatory
- Creates internal record of unaddressed complaints
### 5. **Reputational Damage**
- Appears unfair to other employees
- Suggests grievances are only taken seriously if employee stays
---
## Best Practice Approach
| **Scenario** | **Recommendation** |
|---|---|
| **Straightforward operational issue** | Reasonable to close with written confirmation |
| **Discrimination/harassment allegation** | **Investigate regardless** |
| **Potential constructive dismissal** | Investigate to protect position |
| **Multiple similar complaints** | Investigate to identify patterns |
| **Safety concerns** | Investigate and document |
---
## Practical Steps
1. **Write to the ex-employee** confirming receipt and next steps
2. **Assess the substance** – could this indicate systematic issues?
3. **Preserve evidence** immediately
4. **Conduct basic investigation** if there's any discrimination/safety angle
5. **Document the decision** to close (with rationale)
6. **Inform them of outcomes** even if closed
---
## The Bottom Line
While you can **technically** close the grievance, the **legal and reputational risks often outweigh the savings**. A proportionate investigation (even brief) is usually prudent, especially if discrimination or safety is involved.
**The weakest position is: doing nothing while maintaining no documentation of why.**
Enhanced response (with ZPI)
You still have to investigate. Failure to do so exposes you to significant legal risk.
**Why investigation is required:**
Under the ACAS Code of Practice and the Employment Rights Act 1996, an employer must conduct a fair investigation into a grievance regardless of the employee's subsequent resignation. Abandoning the investigation because the employee has left creates these exposures:
1. **Constructive dismissal claim** — the employee may argue the grievance (and your failure to address it) forced their resignation, potentially succeeding in an unfair dismissal claim within three months of resignation.
2. **Discrimination claim** — if the grievance involved discrimination (race, gender, disability, etc.), non-investigation strengthens their case that you treated the complaint less seriously because they'd resigned, or that the underlying discrimination was real and unaddressed.
3. **Breach of the ACAS Code** — tribunals may uplift compensation by up to 25% if you've unreasonably failed to follow the Code, including investigation of outstanding grievances.
4. **Whistleblowing detriment** — if the grievance related to protected disclosure, resignation without investigation suggests the disclosure was not taken seriously.
5. **Procedural fairness breach** — the employee retains a right to know the outcome, especially if the grievance alleged misconduct by others that could affect remaining staff.
**Risk mitigation:**
- Complete the investigation to the same standard as if the employee remained employed.
- Offer the resigned employee the opportunity to attend the hearing remotely or receive findings in writing (procedural fairness still applies).
- Document your decision to proceed and your reasoning.
- Provide written findings and, if upheld, any remedial action affecting the workplace (e.g., if misconduct by others was substantiated).
- Confirm any appeal right in writing, even though they've left.
The cost of investigation is minimal; the cost of defending a tribunal claim is not.
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
SameV12openai/gpt-4o
BetterComments
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.