The search for the crocodile which fatally attacked New Zealand-born tourist Cindy Waldron in far north Queensland was expected to be wrapped up today.
Ms Waldron, 46, was dragged underwater at Thornton Beach, north of Cairns, after venturing into the water with friend Leeann Mitchell late on Sunday night.
One of three traps set up near where she went missing caught a two-and-a-half-metre estuarine crocodile on Thursday.
Police say the animal's stomach contents are "unidentifiable" and require further analysis.
A police spokesman told AAP investigators believe the crocodile was not the one responsible but weren't able to conclusively rule it out until the results of scientific tests were known.
Ms Waldron’s family says the crocodile shouldn’t be harmed, saying it was in its natural habitat when she was taken in Queensland’s Daintree National Park.
Ms Waldron’s father and sister arrived in Cairns to be closer to where she spent her final days and to say goodbye.
The incident has prompted the state government to allocate an extra $5.8 million over three years in next week's budget for crocodile management - including comprehensive population surveys -- after Environment Minister Dr Steven Miles admitted his department didn't know whether numbers were rising or falling in parts of the state.