Maritime Casualty Investigation: What Really Matters in Determining Liability

INTRO

Maritime casualties are rarely the result of a single failure.
Groundings, collisions, cargo damage, and pollution incidents typically arise from a chain of operational, human, and technical factors.

Determining liability requires more than reviewing reports.
It demands a structured, evidence-based analysis grounded in real operational experience.

1. The Problem with “Paper-Based” Investigations

In many cases, investigations rely heavily on documentation:

• Bridge logbooks

• Noon reports

• Checklists

However, these do not always reflect what actually happened onboard.

Key questions often remain unanswered:

• Were procedures followed in practice?

• Was the bridge team situationally aware?

• Were decisions made under pressure or assumption?

This is where most disputes begin.

2. The Importance of Operational Reality

A proper casualty investigation must reconstruct:

• The actual navigation environment

• Traffic conditions and constraints

• Bridge team interaction

• Decision-making under real conditions

Without this, conclusions are often incomplete or misleading.

3. Causation vs Contributing Factors

One of the most critical elements is distinguishing between:

• Primary cause

• Contributing factors

Examples:

• Incorrect passage plan → contributing factor

• Late alteration → causation trigger

• Fatigue / poor BRM → amplifying factor

Failure to separate these leads to incorrect allocation of liability.

4. Human Element & Bridge Resource Management

In most casualties, the human element plays a central role.

Key areas examined:

• Situational awareness

• Communication within bridge team

• Challenge and response culture

• Use of available equipment (ECDIS / RADAR / ARPA)

Many incidents are not due to lack of procedures, but failure to apply them effectively.

5. Evidence That Really Matters

From an expert perspective, critical evidence includes:

• VDR data and playback analysis

• ECDIS track history

• Radar recordings

• Engine movement logs

• Actual maneuvering sequence

These reveal the truth beyond written records.

6. Why Expert Analysis Makes the Difference

In high-value disputes, the difference lies in:

• Understanding operational constraints

• Interpreting evidence correctly

• Connecting technical facts with legal arguments

An expert opinion must be:

• Structured

• Objective

• Defensible under scrutiny

CONCLUSION

Maritime casualty investigation is not a paperwork exercise.

It is a technical reconstruction of reality —
where operational experience, evidence analysis, and structured methodology determine the outcome.

Independent expert analysis can be decisive in establishing liability and supporting legal strategy in complex maritime disputes.