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OneSource HR

Independent Investigations and Case Handling

When a case is too serious, too sensitive, or too close to home, everything rests on the quality of the investigation that follows.

A thorough, independent investigation is what keeps cases out of tribunals, produces defensible disciplinary outcomes, and gives organisations the clarity they need to act. That process needs to be independent, rigorous, and trauma-informed.

That is what OneSource HR provides.

When organisations call us

Most of our instructions come at a point where something has shifted. A case has become too complex to manage internally. A series of grievances has landed at the same time. Allegations have arrived that carry real legal weight, discrimination, sexual harassment, whistleblowing, fraud, and the organisation knows that getting it wrong is not an option.

The HR team is too close

Experienced and capable, but implicated, exhausted, or simply too close to the situation to be seen as independent.

There is no HR team

The organisation has no internal HR resource to handle a case of this complexity or sensitivity.

The allegation involves a senior colleague

The organisation needs someone who arrives with no internal relationships, no history, and no stake in the outcome.

For employment solicitors

We also receive instructions directly from employment solicitors. When a solicitor foresees significant legal risk and needs an investigation outcome that will hold up under scrutiny, they refer to us. That is not something we take lightly. It means our process, our documentation, and our decisions need to be defensible in the most demanding environments.

What independence actually gives you

Independence is not just about appearances. It changes the quality of the investigation.

We approach every case without a pre-existing lens. We have no history with the individuals involved, no institutional loyalty to protect, and no fatigue from carrying a caseload of difficult situations over time. Fatigue and familiarity are among the most common sources of investigative error, and independence removes both.

We also bring a trauma-informed understanding of human behaviour that changes how we read a case. We understand the neuroscience of stress responses. We know that inconsistency in a disclosure does not indicate dishonesty. We can identify and cut through respondent and perpetrator myths, understand victim behaviour without pathologising it, and reach conclusions that reflect what actually happened rather than what seemed most plausible to someone operating from a conventional HR framework.

This reduces the risk of escalation. It produces clearer outcomes. And it gives everyone involved, complainants, respondents, and the organisation, greater confidence that the process was fair.

Chloe Wallace, founder of OneSource HR, working with the City of London skyline behind her

The disciplinaries, grievances and investigations we support with

Sexual harassment, assault and misconduct

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Bullying, harassment and victimisation

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Whistleblowing and protected disclosures

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Discrimination relating to all protected characteristics

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Fraud, conflicts of interest, bribery, corruption and abuse of power

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Situations involving adult and child safeguarding matters

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Our involvement in safeguarding cases has grown significantly, driven by our trauma-informed methodology. Our independent investigators include professionals trained to Level 3 and Level 5 in safeguarding, bringing a specialism that most HR investigation providers cannot offer.

We also have considerable experience in cases where multiple allegation types intersect. Whistleblowing allegations that surface alongside safeguarding concerns. Grievances that arrive in clusters. Cases where human behaviour has become unpredictable and the organisation needs a steady, experienced, independent hand.

Case studies

Real cases, handled with rigour and care.

A look at how we work in practice, drawn from real, anonymised casework.

Case study

Uncovering a £70,000 theft by a family member

How a rigorous, trauma-informed investigation resolved a deeply sensitive financial misconduct case inside a family business.

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Case study

A complex medical incapacity case, handled with rigour and care

How a trauma-informed approach resolved a deeply sensitive long-term illness case in a highly regulated sector, protecting both the employee's dignity and the organisation from significant legal exposure.

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Case study

Appealing a dismissal for sexual harassment: when the process has to hold

How specialist trauma-informed expertise produced a defensible appeal outcome in a contested sexual misconduct case that went on to litigation.

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Case study

Disability discrimination before the first day: investigating a complaint from a new starter who never started

How a trauma-informed investigation resolved an emotionally charged complaint, uncovered assumption rather than malice, and protected a household-name brand.

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Case study

When "banter" becomes harassment: investigating male-to-male sexual harassment

How a trauma-informed approach cut through bias in a sales-driven culture where "boys will be boys" had become the default explanation.

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What clients say

The level of professionalism and clarity that I got throughout the process was exceptional.

Christopher Sorsby, Managing Director, VitriTech

Christopher Sorsby, VitriTech, on working with OneSource HR

Get in touch

Talk to us about your case

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Prefer to talk it through first?

Book a call with Chloe. We will tell you quickly whether we are the right fit and what the process would look like.