“It’s probably crocodile nesting season, so we’re very loathe to put searchers close into those banks, so that’s where the drones will come into play,” he said.
“(The terrain) is very challenging for ground searches. We put a helicopter up yesterday to have a look at the area, but it is farmland surrounded by dense rainforest which is causing us a few issues.”
Staff from Queensland’s Department of Environment and Heritage spent Monday night scouring the Daintree River for Mr Lemic, in the event that a crocodile was responsible for the 25-year-old’s disappearance.
Senior Sergeant Lukin said he was “very confident” police would find the young man alive.
“We all know the crocodile population does pose serious concerns there,” he said.
“We are not suggesting a croc has played a part in this but there is a big population of crocodiles and … [while] we have looked at animal intervention in this case, it is certainly not something we are really fixed upon.”
Mr Lemic was last seen wearing black tracksuit pants and a black top, with a brightly-coloured singlet under his shirt.
The missing man has an undiagnosed medical condition which would stop him from seeking out contact with other people, according to Senior Sergeant Lukin.
“There’s nothing I have before me to suggest he’s a danger to anybody, but in the unlikely event (you see him), please just ring 000 and police will attend,” he said.
Queensland grandmother Anne Cameron, 79, was believed to have been attacked and killed by a crocodile in 2017, close to where Mr Lemic went missing.
Ms Cameron’s remains were found in the nearby town of Port Douglas in October 2017, after she left a nursing home and became disoriented when she wandered into a dense area of bushland.
Ashleigh McMillan is a breaking news reporter at The Age. Got a story? Email me at firstname.lastname@example.org