ACAS-aligned
Recognised UK employment practice
Our service
Independent fact-finding for complex workplace matters
When a workplace issue requires impartial scrutiny, an external investigator provides the independence and procedural rigour that internal processes cannot always deliver. ZestHRi conducts structured workplace investigations for organisations facing sensitive or high-stakes employment matters.
We work to agreed terms of reference, gathering evidence through interviews and document review, and delivering clear written findings that support fair and defensible decision-making.
Quick response
Within 1 working day
Confidential
Strict confidentiality throughout
In practice
Service gallery
Why external investigation
Investigations conducted with independence and clarity
External appointment demonstrates organisational commitment to fairness — and provides the documented evidence base that governing bodies and decision-makers require.
Impartial fact-finding
Evidence gathered without internal bias, personal relationships, or organisational pressure influencing the process or outcome.
Structured methodology
Clear terms of reference, consistent interview approach, and thorough document review — aligned with ACAS guidance and established UK employment practice.
Defensible reporting
Written investigation reports setting out scope, evidence, findings of fact, and conclusions — structured for boards, trustees, and HR decision-makers.
Common questions
Frequently asked questions
An external investigator should be considered when the matter is sensitive, involves senior staff, raises safeguarding concerns, or where internal resource lacks the independence or capacity to conduct a fair and thorough investigation.