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ARTICLE · 22 MAY 2025

Criminal Investigator – What Do They Do?

Criminal investigators play a critical role in Australia's criminal justice system as much as they do in private investigations.

AustraliaCriminal Law

From solving murders to dismantling organised crime groups, criminal investigators play a critical role in Australia's criminal justice system as much as they do in private investigations.

In this blog our criminal lawyers Sydney team cover the key responsibilities of criminal investigators in Australia, including how they respond to major crime scenes, gather and analyse forensic evidence, conduct interviews, use surveillance and intelligence to develop leads in order to build a brief of evidence to support prosecution.

The Differences Between a Detective and Criminal Investigator

In Australia, criminal investigations are largely undertaken by a 'detective' which is a police officer who has specialised knowledge and experience in the investigation of serious and complex crimes. A criminal investigator can extend to non-detectives who are trained in criminal investigations.

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