External grievance investigations that are fair, impartial, and aligned with your internal policies.

When a workplace grievance is complex, high-risk, or sensitive, bringing in an external investigator can make all the difference. CMP provides independent grievance investigations for organisations that need expertise, impartiality, and a psychologically safe process for all involved.

Why use CMP for grievance investigations?

• Truly independent: We bring an objective, external perspective that helps to build trust in the process and protect your organisation’s reputation.

• Experienced investigators: Our team includes over 100 rigorously selected practitioners with backgrounds in HR, law, compliance, and workplace culture.

• Fair and proportionate: Every investigation is tailored to your policies and values, balancing procedural rigour with empathy and respect.

• Trauma-informed approach: We apply trauma-informed principles to support psychological safety and minimise harm to those involved.

• Scalable and responsive: Whether you need to outsource a single grievance or scale up your internal capacity, we can step in quickly.

What types of grievances do we investigate?

We handle grievance investigations across a wide range of issues, including:

• Bullying and harassment

• Discrimination and inequality

• Conflict between colleagues or teams

• Whistleblowing and ethical concerns

• Pay, promotion, or policy disputes

• Grievances involving senior leaders or board members

We work across public, private, and third sector organisations – from large employers to SMEs.

Our approach

1. Scoping: We work with you to define the terms of reference and select the most appropriate investigator.

2. Planning: We review your internal procedures, assess any welfare concerns, and design a proportionate investigation plan.

3. Evidence gathering: We carry out interviews sensitively and securely, and review relevant documentation.

4. Reporting: Our reports are clear, robust, and aligned with your internal decision-making processes.

5. Follow-up: We offer post-report support, including recommendations, restorative options, or mediation if needed.

Protect your culture and manage risk

A poorly handled grievance can damage trust, escalate conflict, and expose your organisation to legal or reputational risk. Our investigations help you demonstrate procedural fairness, reduce bias, and make sound decisions grounded in evidence.

Quality you can trust

• ISO27001 accredited – secure and confidential handling of all case materials

• GDPR compliant

• All investigations reviewed by our dedicated quality assurance team

• Decades of experience in employment law, HR, and workplace resolution

Need help with a grievance investigation?
Speak to us today about how our external grievance investigators can support your organisation.