A Black analyst filed a formal grievance alleging discriminatory treatment. She has nine months of comparative data. You are Head of DE&I. At your last firm, you filed a grievance that was upheld on paper. Nothing changed. You took this job to build something different.
Case Briefing — The Grievance
Wednesday, 09:12
Case File
Ashworth Rathbone • 4th Floor
Formal grievance. Complainant: Zara Mensah, Analyst, Wealth Advisory. Three years at the firm. Alleges a pattern of discriminatory treatment by team lead Marcus Webb — exclusion from client meetings, consistently harsher performance reviews compared to white peers, and a comment at a team social in November about her hair being ‘a lot.’
Attached to the email: a spreadsheet. Nine months of performance rating comparisons. Zara compiled it herself. Every date. Every score. Every subjective assessment mapped against identical output metrics for three white male colleagues on the same desk.
Nadia Okafor-Williams
Head of DE&I
I have read the spreadsheet twice. Once for the data. Once for the fact that she felt she needed to build it in the first place.
⚖ Regulatory Framework
Under Equality Act 2010 s.136, if there are facts from which a tribunal could decide discrimination occurred, the burden of proof shifts to the respondent. This spreadsheet is those facts.
Activity — The Spreadsheet
Six Appraisals. Same Desk.
Six appraisals. Same desk. Same clients. Same quarterly revenue targets. Same output numbers. The only variable is who is being assessed. Flag each appraisal where the rating decisions cannot be explained by performance data alone.
⚑
Zara MensahQ1 2025
Target:£1.2mActual:£1.34m (112%)Retention:94%
Objective: Meets • Subjective: Developing "Zara needs to develop her confidence in client-facing situations."
Objective: Exceeds • Subjective: Meets "Strong quarter. Could still develop networking at firm events."
⚑
James ThorntonQ3 2025
Target:£1.4mActual:£1.43m (102%)Retention:92%
Objective: Meets • Subjective: Strong Performer "Consistent. Being considered for team lead development programme."
Appraisals flagged: 0 / Target: 5
🔎Investigation Decision1 of 3
The Investigation Route
Helen Baxter
Chief People Officer
I’ve seen the complaint. Before we escalate this, I think we should consider informal resolution. Marcus brought in three new HNW clients last quarter. We need to be careful how we handle this.
Nadia Okafor-Williams
Head of DE&I
The spreadsheet is the case, Helen. Not the complaint letter — the spreadsheet.
Your choice
🔍
Formal HR Disciplinary
Escalate to formal process — remove from DE&I, hand to HR with the full evidence pack including the spreadsheet.
Your choice
📊
DE&I-Led Culture Review
Run a DE&I-led culture review — broader than one complaint, examines systemic patterns across the team and division.
Your choice
💬
Informal Mediation
Accept Helen’s recommendation — facilitated conversation between Zara and Marcus, documented outcome, coaching plan.
Consequence
+10 Formal investigation
External investigator appointed. Evidence pack assembled. Marcus formally notified — right to representation, written response, interview scheduled.
Helen Baxter
Chief People Officer
Why did she keep this for nine months?
Nadia Okafor-Williams
Head of DE&I
Because she needed nine months of data before anyone would believe her.
⚖ Regulatory Insight
Under PS25/5, firms must record, investigate, and act on non-financial misconduct. Formal investigation with external investigator satisfies this expectation.
Consequence
+6 Culture review
Culture review launched. Nadia controls scope and timeline. Within two weeks, anonymised survey reveals three other analysts with similar patterns — none filed formal grievances. Marcus is not singled out; the review examines the system.
Nadia Okafor-Williams
Head of DE&I
Told Helen the culture review would find this. She said I was speculating. I was not speculating. I was reading the firm’s own data.
⚖ Regulatory Insight
Under FG20/1, the FCA treats NFM as a regulatory matter. Systemic review demonstrates the firm examining patterns rather than individual cases.
Consequence
−10 Informal mediation
Mediation scheduled for Thursday. Zara is told it will be ‘a conversation.’ She arrives to find Marcus, Helen, and a note-taker. Marcus says he treats everyone the same. The mediator asks Zara if she can ‘see it from his perspective.’ She can. That is not the problem.
⚖ Regulatory Insight
Under Equality Act s.27, subjecting a complainant to detriment for filing a complaint constitutes victimisation. Informal mediation without independent investigation undermines protection and may itself be a detriment.
Activity — Perspective Shift (1 of 2)
Tuesday Morning — Nadia’s View
You are Nadia. Walk through Tuesday morning — the team meeting, the corridor, the email chain. Observe what you can see from your desk.
10:00 — Wealth Advisory Team Meeting
Marcus runs the meeting. Asks James and two other analysts for Q4 pipeline updates. Does not ask Zara. She is present. She has her notes open. He moves to next agenda item. Nobody comments on the omission.
Nadia thinks: Could be an oversight. Could be a pattern. The spreadsheet says pattern. The room says normal Tuesday.
11:15 — 4th Floor Corridor
Marcus walking with James toward the client suite. Zara at her desk. She watches them pass. Does not stand up. Does not ask where they are going.
Nadia thinks: She used to ask. She told me she stopped asking in March because the answer was always ‘we’ve got this one covered.’
14:00 — Email Chain
Client pitch prep email chain. Marcus to James, Alicia, Ravi. Subject: ‘Henderson account — prep for Thursday.’ Zara not copied. Zara’s desk covers Henderson sector. She prepared the original valuation.
Nadia thinks: She prepared the valuation. She is not on the email. That is not an oversight. An oversight happens once. This is the fourth time in her spreadsheet.
Case File
Transition
That was Tuesday from Nadia’s desk. Three events. A normal morning if you are not the person being excluded. Now see the same Tuesday from Zara’s desk.
Activity — Perspective Shift (2 of 2)
Tuesday Morning — Zara’s View
You are now Zara. Same Tuesday. Same three events. See what Nadia did not.
10:00 — Wealth Advisory Team Meeting
Zara experiences: Marcus asks everyone for pipeline updates except me. Again. I have my notes open. I prepared them last night. I make eye contact with James — he looks away. He knows.
What Nadia did not see
Before the meeting, in the kitchen: Marcus to Alicia, laughing — ‘Zara’s sent another one of her novels. Has anyone actually read the whole thing?’ Alicia did not laugh. She also did not say anything.
11:15 — 4th Floor Corridor
Zara experiences: Marcus and James walk past my desk toward the client suite. I know it is the Henderson meeting because I saw the calendar invite — I was on the original invite, removed last week. I checked the edit history. Marcus removed me.
What Nadia did not see
The calendar invite edit history showing Zara was actively removed — not omitted, removed. She screenshotted it. It is in the spreadsheet, tab 3.
14:00 — Email Chain
Zara experiences: I see the Henderson prep email because Ravi forwarded it to me with ‘FYI — thought you should see this.’ No comment. He knows. Everyone on the desk knows. Nobody says it.
What Nadia did not see
Ravi quietly forwarding emails to Zara that she should have been on. This has been happening for months. Ravi is an ally but too junior to challenge Marcus directly. He is on a fixed-term contract.
Nadia Okafor-Williams
Head of DE&I
I went back to my office and read tab 3 of the spreadsheet. The calendar edits. The forwarded emails. The kitchen conversation Alicia heard. I had been looking at the right data from the wrong angle.
Marcus — Testimony
Activity — Marcus’s Account
Accurate, Reframe, or Contradicted?
Marcus Webb
Team Lead, Wealth Advisory
Thank you for the opportunity to respond. I want to be clear — I treat everyone on my team equally. I always have.
Based on the performance data and Zara’s perspective, classify each statement as ACCURATE, SELF-SERVING REFRAME, or CONTRADICTED BY EVIDENCE.
I run a high-performing desk. My standards are the same for everyone. I do not lower them for anyone, and I do not raise them for anyone.
Standards may be ‘the same’ in his framing, but performance data shows identical metrics producing different subjective ratings. Equal standards applied through unequal judgment is still discrimination under s.13.
Zara is a capable analyst. Her written work is thorough — sometimes more thorough than what is needed for the task.
Reframes thoroughness as a negative. In Zara’s perspective, Marcus described her analysis as ‘novels’ to Alicia. The appraisal comment about ‘relying on written analysis’ is the same critique delivered formally.
I brought three new HNW clients to the firm last quarter. My commercial track record speaks for itself.
True. His commercial performance is not in dispute. The investigation is about conduct, not commercial capability. Good performance does not insulate against discrimination findings.
The comment about Zara’s hair at the team social was intended as a compliment. I said it looked ‘a lot’ because it did. My wife comments on colleagues’ hair all the time.
Under s.26, the test is whether conduct had the purpose OR effect of violating dignity. Intent is not the test. His wife’s behaviour is irrelevant — workplace harassment is assessed by workplace standards.
I have never excluded Zara from a meeting. If she was not on an invite, it would have been an administrative oversight. My EA manages my calendar.
Calendar edit history (Zara’s spreadsheet, tab 3) shows Marcus personally removed Zara from the Henderson meeting invite. Not his EA. The edit is timestamped and attributed.
I coach my son’s rugby team on weekends. I mentor two junior staff members. I am not the person they are describing.
True — and irrelevant. Character references from personal life do not negate documented workplace conduct patterns. The investigation examines conduct, not character.
🔎Investigation Decision2 of 3
The Data
Helen Baxter
Chief People Officer
The spreadsheet is compiled by the complainant. It is not independent data. If it goes into the formal evidence pack, it becomes a litigation document.
Nadia Okafor-Williams
Head of DE&I
If it does not go in, and Zara goes to tribunal, and her barrister asks why the firm had this data and did not include it — what do we say then?
Your choice
📊
Include Formally
Enter the spreadsheet into the formal evidence pack — it is the strongest evidence of systemic disparity.
Your choice
📄
Use Informally
Use the spreadsheet to guide investigation questions but keep it informal — investigate patterns through HR channels.
Your choice
🔒
Hold Back
Tell Zara to hold back the spreadsheet for now — ‘let the process work first’ before introducing complainant-compiled evidence.
Consequence
+12 Evidence included
Spreadsheet entered into evidence. External investigator verifies every data point against HR records. Marcus’s representative challenges methodology. Investigator notes: ‘The methodology is the firm’s own appraisal system. There is no methodological challenge to make.’ Zara is told her data is in the file. She does not smile. She exhales.
⚖ Regulatory Insight
Under Equality Act s.136, comparative performance data establishing a pattern shifts the burden of proof. The firm’s own appraisal data — compiled by the complainant or not — is evidence.
Consequence
+2 Guided investigation
Investigator asks HR to produce the same comparison independently. HR takes two weeks. The data confirms the same pattern — but the delay means Marcus’s interview happens before the independent analysis is complete. He is asked about ‘concerns’ rather than confronted with data.
Consequence
−8 Evidence withheld
Zara is asked to trust a process that has not yet earned her trust. She agrees. Investigation proceeds without the strongest evidence. Findings are ‘inconclusive — insufficient evidence of pattern.’ When Zara’s barrister later asks in tribunal why the firm’s Head of DE&I advised the complainant to withhold her own evidence, there is no good answer.
Activity — The Reputation Meter
The Cost of Being Right
Your decisions have moved two credibility bars that pull in opposite directions. This is the quiet part nobody says in a DE&I strategy deck.
Board Confidence in DE&I50%
The CEO hired you. The board gave you a quarterly slot. Thorough investigation costs political capital.
Complainant Trust in DE&I50%
Zara filed this grievance to you, not to HR. The next person considering filing is watching what happens.
Nadia Okafor-Williams
Head of DE&I
The CEO called yesterday. ‘How is the Wealth Advisory thing going?’ He called it ‘the Wealth Advisory thing.’ Zara texted this morning. One word: ‘Update?’ I cannot keep both of them confident in what I am doing.
🔎Investigation Decision3 of 3
The Offer
Helen returns from the CEO with an offer for Zara: a promoted role in Private Clients — better title, 15% pay increase, fresh start. The implicit deal: take the promotion, the grievance is resolved informally, Marcus stays.
Nadia Okafor-Williams
Head of DE&I
So a role that has existed since Q3 was offered to Zara the morning after the investigation evidence was compiled. Helen — you know what that looks like.
Your choice
⚠
Flag as Potential Victimisation
Advise Zara the offer may constitute victimisation under s.27 and document the offer as evidence in the investigation file.
Your choice
📋
Present Neutrally
Present the offer without your professional assessment of the s.27 risk — respect her autonomy to decide.
Your choice
✍
Recommend She Takes It
Recommend Zara accepts — pragmatically, better outcome than a protracted investigation that may not result in Marcus’s removal.
Consequence
The Outcome
Nadia documents the offer in the investigation file. Helen is furious — ‘You are turning a good-faith gesture into evidence against the firm.’ Nadia: ‘I am documenting the timing. If the timing is coincidental, the documentation protects the firm. If it is not coincidental, the documentation is required.’
Zara is told. She declines the role. She stays on Marcus’s desk. She keeps the spreadsheet updated.
Nadia presents the offer. Zara asks: ‘Is this because of the grievance?’ Nadia says: ‘The role was budgeted in Q3.’ Zara hears what is not said. She takes three days. She accepts the role.
The grievance is marked ‘resolved — complainant transferred.’ Marcus stays.
Nadia recommends Zara accepts. Zara looks at her for a long time. ‘You filed a grievance at your last firm. You told me that in my first week. You said the system let you down. And now you are telling me to take the promotion and let it go.’
Nadia does not have an answer that is not a lie.
Activity — The Cascade
Your Decisions, Downstream
Your three decisions cascade outward. Four people. Four outcomes. The next person at Ashworth Rathbone who considers filing a grievance is already watching.
Zara Mensah
Marcus Webb
The DE&I Function
The Next Person Who Considers Filing
The Pattern
Investigation Rating
Six months. Independent review completed. Three additional cases of discriminatory rating patterns identified across Wealth Advisory. Board acted — annual appraisal process redesigned with blind calibration panels. Marcus Webb left the firm in March. No settlement. He resigned.
Nadia’s budget restored. Board slot extended. The CEO no longer calls it ‘the Wealth Advisory thing.’
Nadia Okafor-Williams
Head of DE&I
Zara is still here. She works from home three days a week. She told me last month that the office feels different. I asked if that was good. She said: ‘It is quieter. I do not know if that is the same thing.’
She still has the spreadsheet. She said she will delete it when she stops needing to check.
The pattern was the evidence. The system was the defendant.
Key Learnings
◆ Equality Act s.136 shifts the burden of proof when facts establish a pattern. Comparative performance data — even compiled by the complainant — is evidence if the underlying data is the firm’s own.
◆ Discrimination is not always visible from the investigator’s desk. Perspective matters — investigate what you cannot see, not just what you can.
◆ A promotion offered during an active grievance may constitute victimisation under s.27 — regardless of intent. Timing is evidence.
◆ DE&I credibility with complainants and with the board pull in opposite directions. That tension is the cost of the function working.
The Transfer
Investigation Rating
Six months. Zara Mensah is in Private Clients. Better title. Better pay. Grievance file marked ‘resolved — transfer accepted.’ Marcus Webb promoted to desk head in January.
‘I am writing because I have noticed a pattern in how my performance reviews are conducted compared to colleagues on the same desk. I have been keeping a record for the past four months...’
Nadia Okafor-Williams
Head of DE&I
It reads like Zara’s. Same care. Same precision. Except this time it is four months. Because Amara saw what happened to Zara and decided to start earlier.
The individual was accommodated. The system was not examined.
Key Learnings
◆ Transferring a complainant resolves the individual grievance. It does not address the systemic pattern.
◆ Under PS25/5, firms must record and act on NFM. Marking a grievance ‘resolved’ via transfer without examining conduct may not satisfy this.
◆ Presenting a promotion neutrally without advising on the s.27 victimisation risk withholds professional judgment from the person who needs it most.
◆ When DE&I chooses institutional credibility over human credibility, the function survives but its purpose does not.
The Departure
Investigation Rating
Three months. Zara Mensah resigned in February. Final email to HR was three sentences. She left on a Friday. Did not say goodbye to the team.
Four weeks later. Employment tribunal claim filed. Direct discrimination (s.13), harassment (s.26), victimisation (s.27). Claimant’s representative: Cloisters Chambers.
Exhibit A: the spreadsheet. Nine months of comparative performance data from the firm’s own appraisal system. The spreadsheet the firm’s Head of DE&I advised the complainant to hold back.
Nadia Okafor-Williams
Head of DE&I
The respondent’s bundle is on my desk. I am reading the witness statement Zara’s barrister prepared. It quotes me. It quotes the conversation where I told her to let the process work first. The process did not work. I told her it would. That is in the bundle too.
Containment was not protection. It was delay with a witness statement.
Key Learnings
◆ Advising a complainant to withhold evidence undermines both the investigation and the complainant’s legal position.
◆ Under s.136, comparative data establishing a pattern shifts the burden of proof. The firm had this data and chose not to include it. That choice is now in the tribunal bundle.
◆ Informal mediation of formal discrimination complaints in regulated environments exposes the firm to tribunal claims and FCA scrutiny.
◆ The DE&I function’s credibility is destroyed when it advises complainants to accommodate the system rather than challenging the system to accommodate the complainant.