Queensland's top crime fighting body has been granted the power to fast-track investigations of violent crimes against vulnerable victims including children and the elderly.

Queensland police often call on the Crime and Misconduct Commission (CMC) to help them investigate, as it has powers that the police service does not.

CMC assistant commissioner Kathleen Florian says the change is important, with almost 25 per cent of suspected homicides reported to Queensland police last year involving vulnerable people.

"Your chances of resolving a homicide are significantly increased if you can act sooner," she told AAP.

"If they aren't resolved in a short period of time, it's far more difficult to resolve them."

"This (change) will allow us to respond very quickly in the Daniel Morcombe-type scenario."

 

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