Every casualty recorder must have clear means of dealing with both people and evidence: they are inseparable components of all source material.
All useful evidence must originate from some identifiable person or organisation, and no person or organisation can be considered a useful source unless the information they hold can be converted into documentary evidence that can be stored and analysed. Effective and credible casualty recording depends upon the ability to make and defend judgments about the inclusion or exclusion of specific pieces of evidence from specific people or organisations.
THE RANGE OF SOURCES IN CASUALTY RECORDING, p. 4
