We won’t stop, we owe it to Donna and her boys to get closure in this case and allow them to grieve. We are confident we will find out what’s happened.

That’s the message from Detective Inspector Geoff Marsh as investigations into the murder of mum-of-two Donna Steele continue in Cooktown with 20 detectives on the ground in the small community following lines of inquiry.

And that commitment was on show yesterday as SES volunteers started a fresh search around Leggett's Crossing, near where Ms Steele's body was found on August 6.

The forensic investigation of the site where the body was found has finished and police divers also searched the area and found a number of items, including clothing, that will be sent for further analysis.

But no stone will be left unturned as police hunt for answers.

"This investigation has gained momentum, there are offers of assistance from Townsville, Mackay and Brisbane. We have more than ample resources to follow this investigation through to its conclusion,” he said.

“Someone in Cooktown knows what’s happened here. Someone holds the evidence or information that will assist us to get a resolution to this investigation to get closure for Donna’s family.

“We are very confident and a majority of people in Cooktown are going out of their way to help police.”

Det Insp Marsh said police were also asking for the public’s help for information about Ms Steele’s movements during “the very crucial time” between 12.15pm and 4pm on 2 August.

"Anyone who had contact with Donna in the days and week leading up to her tragic death are asked to come forward, this will help us eliminate lines of inquiry," he said.

Police are also still asking for anyone with dashcam footage from the Cooktown area to hand it into officers to help with the investigation.<strike></strike>