Hannah Clarke murders: Queensland police made potentially critical mistakes, new evidence reveals

Exclusive: Detectives investigated veracity and motive' of Brisbane woman's allegations of domestic violence and coercive control - even after the horrifying attack that killed her and her children

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New evidence uncovered by Guardian Australia reveals serious police failings in the lead-up to the murders of Hannah Clarke and her three children that were overlooked by the coronial inquest and never investigated by homicide detectives.

The previously unreported material includes evidence that Clarke made repeated disclosures to a Queensland police officer about her estranged husband, Rowan Baxter, that were not logged in police systems.