Why Most Incident Investigations Unintentionally Blame People

Luke Dam
Mar 9
3 min read

Most investigators will confidently say:

“We don’t blame individuals.”

And they mean it.

Yet, when you read many investigation reports closely, a different story emerges.

The language is careful. The intent is genuine. But the logic still lands on people.

This is not a failure of professionalism. It’s a failure of how investigations are structured.

Blame doesn’t require intent

Blame does not have to be explicit to exist.

It shows up in conclusions like:

“The worker failed to follow the procedure”
“The supervisor did not adequately monitor”
“Training was insufficient”
“Risk awareness was lacking”

These statements often come with good intentions:

to prevent recurrence
to show diligence
to satisfy governance requirements

But they all share a common feature:

They locate the problem at the point of human action.

That is how blame creeps in- quietly and unintentionally.

The invisible assumptions baked into investigations

Most investigation processes- regardless of the tool used- carry hidden assumptions:

That procedures are accurate and usable
That controls are effective if followed
That people have sufficient time, resources, and authority
That deviations are conscious choices

When these assumptions are not questioned, any deviation is automatically attributed to human failure.

The system remains largely invisible.

The “last person” problem

Investigations often focus on the person:

closest to the incident
last to touch the task
easiest to identify

This is not because investigators want to blame. It’s because causation is traced backwards until it reaches a human decision, and then it stops.

The investigation ends where complexity begins.

ICAM deliberately pushes past this point.

Why human behaviour is an easy explanation

Human actions are:

observable
documentable
defensible in reports

System conditions are:

diffuse
historical
uncomfortable to confront

It is far easier to write:

“The worker bypassed the control”

than:

“The organisation tolerated degraded controls, production pressure, and ambiguous supervision for years.”

One explanation is simple. The other demands leadership accountability.

How investigations unintentionally teach people lessons

Every investigation sends a message.

When reports focus on:

compliance failures
procedural non-adherence
individual judgement

People learn:

what not to admit next time
how to describe work in safer language
when to stay quiet

This is how reporting quality degrades, even in organisations that claim a just culture.

“Human error” is not a cause- it’s a symptom

Human error is evidence that:

controls were relied upon but unmanaged
work was more complex than anticipated
trade-offs were necessary to get the job done

ICAM treats human action as data, not a diagnosis.

Instead of asking:

“Why did the person make this mistake?”

ICAM asks:

“Why did this action make sense at the time?”

That single shift removes blame from the frame.

Why training is the most common “action”

When investigations blame people, actions almost always include:

retraining
refresher sessions
toolbox talks

Training is not inherently bad. But when it becomes the default response, it signals:

We expect people to adapt to the system- rather than adapting the system to people.

ICAM reverses this logic.

What ICAM does differently

ICAM structurally prevents blame by forcing analysis across four domains:

Absent or failed defences
Individual and team actions
Task and environmental conditions
Organisational factors

Crucially, individual actions are never the endpoint.

They are explained, not judged.

Blame hides risk

Blame feels decisive. It feels like control.

But it hides:

weak barriers
conflicting priorities
unmanaged risk acceptance

When people are blamed, systems are protected from scrutiny.

ICAM makes systems visible- and that can be uncomfortable.

The leadership dimension no one talks about

Unintentional blame often survives because:

it aligns with performance narratives
it avoids difficult governance questions
it protects senior decision-making

ICAM shifts accountability up the system, where it belongs.

This is why it is powerful- and why it is sometimes resisted.

A better test of investigation quality

Instead of asking:

“Did we identify who failed?”

Ask:

“Could this incident happen again tomorrow, with a different person?”

If the answer is yes, the system, not the individual, was the problem.

Final thought

Most investigations don’t blame people because investigators are careless.

They do it because:

systems are invisible
complexity is uncomfortable
human action is easy to explain

ICAM doesn’t remove accountability. It puts it in the right place.

And that is how organisations actually get safer.