Why workplace investigations matter more than ever
By Melisa Kappely, Partner Intepeople & Brannigans
When you lead people conflict isn’t an occasional inconvenience, it’s inevitable. In fact, the 2024 State of Workplace Conflict report found that 88% of employees have witnessed poor morale directly caused by conflict.
That’s not a soft‑issue problem. It’s a performance and culture risk, and workplace investigations are one of the most critical tools for facing those issues head‑on.
Sometimes conflict can be resolved informally, and this is the preferred approach if it brings the right resolution. But when it escalates into allegations of bullying, harassment, discrimination, or intimidation, the responsibility becomes formal and leaders must act.
Investigations are essential when:
- a complaint alleges behaviour that breaches policy or employment obligations
- interpersonal conflict has escalated beyond informal resolution
- serious concerns arise that require fact‑finding and fairness.
As I said in my conversation with Leadership Expert Suzi McAlpine last year, conflict often isn’t about isolated incidents it’s about patterns, escalations, and impacts that leaders can’t afford to ignore.
Ignoring conflict erodes trust faster than any culture initiative can rebuild it.
External investigators bring:
- Independence: no prior relationships or bias
- Credibility: trained in investigative methodology
- Consistency: clear application of natural justice principles.
Fairness isn’t just about the outcome. It’s about the process feeling trustworthy to everyone involved.
There are four common mistakes leaders make when dealing with conflict and investigations. The themes are clear: leaders often avoid, downplay, mishandle, or delay action. These missteps increase risk and can inflame issues rather than contain them.
What a robust investigation actually involves
Workplace investigations aren’t informal chats behind closed doors, they require structure and discipline. A sound process includes:
- defining the scope clearly
- planning interview sequences and witness lists
- collecting evidence (emails, messages, CCTV, documents)
- evaluating facts objectively
Investigators must operate with integrity, transparency, and fairness because these processes impact people deeply, often at extremely vulnerable moments. Ethical practice isn’t a “nice‑to‑have.”
It is the backbone of legitimacy in any investigation.
Culture is built in the moments no one sees
Most people in an organisation will never see the investigation report. They’ll never attend the interviews. But they will feel the ripple effects of how their leaders behaved when it mattered.
They remember if leaders listened.
They remember if leaders acted.
They remember if leaders chose fairness over convenience.
These moments, the hard ones, the emotionally charged ones, are where organisational culture is truly revealed. Organisations that embrace transparent, impartial investigations don’t just handle problems, they build trust, stability, and resilience.
And in today’s workplaces, that courage is more vital than ever.
About our Author
Melisa Kappely is a Partner at both Intepeople and Brannigans, where she brings more than 25 years of senior experience across human resources, organisational development, and executive leadership. Known for her pragmatic and commercially minded approach, Melisa has held senior management roles in major New Zealand organisations across the ports, dairy, banking, and public sectors, including Fonterra, BNZ, Port Nelson, and Stats NZ.
A qualified workplace investigator and licensed Private Investigator, Melisa specialises in workplace investigations, conflict resolution, senior team performance, executive search, and large‑scale change management. She holds a Master of Science in Applied Psychology along with a Diploma in Industrial and Organisational Psychology and has completed executive education at Harvard Business School.