# Inspector task sheet

Lake Nyos: how a lethal gas release became an investigation

## 1. Construct a measurement inventory

Index samples by depth, collection date, method and units. Note whether each value is measured, calculated or reconstructed from after-event observations.

Status: proposed; not completed.
Evidence found:
Source and page:
Limits:
Next action:

## 2. Draw a causal sequence with evidence

Give gas supply, storage, release and transport separate entries, each linked to a report passage. Mark the trigger uncertain if the evidence does not identify it.

Status: proposed; not completed.
Evidence found:
Source and page:
Limits:
Next action:

## 3. Compare early and later interpretations

Record which observations changed the explanation. Avoid treating all papers as equally current or turning an early hypothesis into a final finding.

Status: proposed; not completed.
Evidence found:
Source and page:
Limits:
Next action: