A wave of pre-winter warmth will sweep across southern Australia this week.

Adelaide, Melbourne and Hobart are all facing a run of days above 20 degrees leading into the weekend.

Adelaide's top temperatures will run to 27 or 28 degrees from today until Sunday, when it drops again.

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Melbourne will be slightly cooler but will top out in the mid-20s until next week.

Hobart, too, will run to the low to mid 20 degree range until Monday.

Weatherzone reported these temperatures were solidly above the monthly average for Adelaide (22.2 degrees), Melbourne (20.4 degrees), and Hobart (17.5 degrees).

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"South Australia, Victoria and Tasmania are all being impacted by northerlies circulating anti-clockwise around the (high pressure system), dragging warm air southwards from the interior of the continent," Weatherzone said.

"This pattern will remain in place for several days as the high drifts east."

Dry conditions in those areas are also expected for the rest of the week.

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A new documentary has drawn a fresh link between notorious serial killer Ivan Milat and the unsolved 1972 murder of Melbourne teenager Robin Hoinville-Bartram and the disappearance of her friend Anita Cunningham.

Hoinville-Bartram and Cunningham, both 18, were hitchhiking from Melbourne to Queensland when they vanished.

In November 1972, railway workers found Hoinville-Bartram's body under a bridge on the Flinders Highway, about 250 kilometres west of Townsville. She had been shot twice in the head at close range and was naked from the waist down. Cunningham has never been found.

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Milat, who died in 2019 protesting his innocence, was convicted of murdering seven backpackers in Belangalo State Forest, in the NSW Southern highlands.

But many, including detectives who brought him to justice, believe he could have killed scores more.

NSW Legalise Cannabis MP Jeremy Buckingham, who has been using parliamentary mechanisms to probe the true extent of Milat's crimes, told Outback Murder Highway – a four-part series investigating unsolved murders and disappearances along the Flinders Highway – that he believes Hoinville-Bartram and Cunningham could be among the serial killer's earliest victims.

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"What we need to do is look at Ivan Milat's life, look at the opportunity he had to commit a crime," Buckingham said.

"Where was he? What was he doing? Were there crimes in those areas at that time that fit his modus operandi? And the answer is yes."

Taskforce Air was established shortly after the first bodies were discovered in Belangalo Forest in 1993.

With Milat yet to enter the police's sights and with few suspects, the task force examined similar unsolved murders nationwide that could have been committed by the same killer.

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The previously unpublished list, obtained in parliament by Buckingham, contained 58 names, including Hoinville-Bartram and Cunningham.

Milat was in his late twenties at the time Hoinville-Bartram and Cunningham disappeared.

Jeremy Buckingham MP said the circumstances of the women's disappearance, including their age, the fact they were hitchhiking when they disappeared, and the sexual assault and execution of Hoinville-Bartram, bore striking similarities to the crimes for which Milat was convicted.

Former Queensland detective Brendan Rook pointed out that among Milat's seven known victims were three couples.

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"We see a pattern of behaviour where he abducts more couples than he does individuals," Rook said.

"You don't have too many serial killers abducting couples."

Milat's preference for couples was evident decades before the backpacker murders. In 1971, a year before Hoinville-Bartram and Cunningham disappeared, Milat picked up two 18-year-old hitchhikers, assaulted one at knifepoint and threatened to kill the other.

The pair escaped, and Milat was later charged but acquitted.

Buckingham says very little is known about Milat's whereabouts between 1971 and 1974, but he was aware of evidence Milat fled to Queensland after the failed prosecution.

An eyewitness account aired in the documentary adds to the suspicion.

In 2003, witness Merle Whyte told Crimestoppers she met the two women in July 1972 at the Pentland Hotel, 15 kilometres from where Hoinville-Bartram's body was later found.

Whyte recalled seeing the pair socialising with a man they called "Cowboy", before accepting a lift with the man to Charters Towers.

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Decades later, Whyte recognised Milat on television as the same man.

Whyte's family claims police dismissed her account. But Buckingham said Milat had a lifelong strange fascination with cowboy attire.

"Who, as an adult, dresses up as a cowboy? Ivan Milat did. He did it his whole life," he said.

Although Milat lived in NSW and his known victims were murdered in the Belangalo Forest, Buckingham said the killer was highly mobile, working at various times on a road gang and as a truck driver in Queensland, and could therefore be responsible for murders across the country.

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If proven, Milat's connection to the Flinders Highway will underscore its deadly reputation.

Since the 1970s, eleven people, including Hoinville-Batram and Cunningham, have been murdered or vanished along the remote 900km stretch of road.

Outback Murder Highway, a four-part documentary series investigating a cluster of unsolved murders and disappearances along the Flinders Highway, airs on Nine, which is also the publisher of this website, tonight.

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During a Christmas lunch with mates, Neil Walshe reluctantly shuffled into a pokies room.

Nothing was amiss: Flashing lights and high-pitched slot machine jingles are a common backdrop to pub meals in Australia.

But then came a startling realisation.

"As they always do, my mates say, 'We're going to go and have a slap', and so I walked in the room with them," Walshe recalled to Nine.com.au.

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Two cheeky dogs have been found after a wild five-week adventure in South Australia's Murraylands saw them face the elements and battle kangaroos.

Rupert and Finni often go wandering in their backyard.

It usually starts with one going next door to fetch the other and ends with them biting off more than they can chew, such as taking on kangaroos.

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But things took a different turn in March when Ben Dunbar's attempts to find the dogs went unanswered by his next door neighbour, Chris Scanlon.

"I found him passed away in the paddock, and hence that's why the dogs had run away and disappeared," Dunbar said of Chris' shock death.

Signs and searches for the lost dogs didn't bring the pets any closer to home.

Hope wore thin as the weeks drew on, until a Facebook post pointed Dunbar to a nearby but largely empty island on the River Murray.

This prompted one final three-hour search in a dinghy and on foot.

"Then just out of the blue, Rupert just popped out of nowhere, I was nearly in tears," Dunbar recalled.

Both dogs were there – starving and a little withdrawn but alive. Finni was covered in the unmistakable signs of kangaroo warfare but home at last.

In these parts of the state, devices that pick up signals for trackers to send a location are few and far between.

Even if they did work, Rupert somehow found a way to lose two collars during the adventure anyway.

"It's been a bit of a bizarre five weeks to be honest with finding Chris and both of the dogs missing, there's kind of been a bit of an emptiness," Dunbar said.

With the passing of Chris, Finni will now stay with his son, Cody, in Mannum, almost 40 kilometres away.

But the distance won't keep them apart for long.

"Looking at him it just reminds me of the good times that he had with my dad and I had with my dad and all the family," Scanlon said.

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Thousands of West Australian drivers have successfully appealed artificial intelligence-based camera infringements, wiping $2.2 million in fines.

But as pressure mounts to press pause on the controversial cameras, the government says it's going to roll out even more.

Over the past six months more than 54,000 infringements have been issued to WA drivers for incorrectly wearing a seatbelt or not wearing one at all.

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The acts have been caught by AI cameras, with new data revealing nearly $10 million in fines have been issued since they officially launched in October.

Perth father Steven Shaw is one of those fined.

Over a two-month period, between December and January, his passenger was caught four times by AI cameras improperly wearing her seatbelt on the freeway.

"When you're driving 100[km/h] down the freeway, there's no safe way you can safely monitor a passenger's seatbelt location without potentially causing an accident," Shaw told 9News.

But, as the driver, he was hit with more than $2000 in fines and 20 demerits, starting a four-month battle and putting his livelihood at stake.

"There was two or three weeks where I didn't know if I'd lost my licence, I was in limbo and my wife driving much of the time," Shaw said.

Shaw challenged his infringements, with the Department of Transport withdrawing all but the first one, which he'll contest in court.

The father is one of 2800 drivers who've successfully appealed their infringement notices, wiping $2.2 million in fines.

"AI cameras in my opinion are not suitable for this form of infringement, they are for speeding and phones," Shaw said.

WA Premier Roger Cook said it's not the AI cameras' fault but that the driver gets clocked multiple times in a short window.

"People are often getting penalised once, twice or three times before they're even aware that a fine has been raised in their name," Cook said.

Despite the AI camera backlash, the WA government plans to roll out even more within the next six months.

The opposition says the government needs to iron out the issues before launching more.

"The government haven't gotten it right," Opposition Leader Basil Zempilas said.

"It needs to be tweaked and they need to get it right before more fines are issued."

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Woolworths has denied corporate watchdog claims it tricked Australians with fake discounts, saying the regulator has misrepresented what drives prices at the shelf.

In the Federal Court on Tuesday, the supermarket giant denied temporarily hiking prices on hundreds of items before reducing them by a lesser degree to hide increases from consumers.

Price increases sometimes fell below suppliers' recommendations and occurred against a backdrop of rising inflation after the COVID-19 pandemic, Woolworths' legal team argued.

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"Woolworths was facing significant cost price increases from a large number of suppliers across their full range of products," Robert Yezerski SC said.

"To suggest … Woolworths is engaged in an activity that is involved for them manufacturing prices to then show a drop, we say, just totally misrepresents the true nature of the commercial negotiation."

Woolworths' defence argued the inflationary impacts – which hit grocery items harder than other products and services in the period in question between late-2021 and mid-2023 – were relatively uniform across competitors Coles and Aldi.

The key to determining the case would be the duration prices were temporarily elevated, Justice Michael O'Bryan said.

"One tends to think … if the price establishment period was three months, we wouldn't be here," O'Bryan said.

"If it was always one week, the case might not be fought.

"We're somewhere in the middle, and that's what makes this case rather difficult."

But the ACCC's legal team alleged Woolworths used misleading tactics in its discount campaign.

"The subtle magic of the 'prices dropped' message that draws the consumer in is to say that the new stable price is lower than the old stable price," ACCC silk Michael Hodge earlier told the court.

The ACCC launched the joint action in 2024 against Woolworths and Coles, alleging the supermarket giants broke consumer law using fake discounts to mislead customers.

The reduced prices were often the same or higher than the original shelf prices and therefore deliberately misled consumers, the competition watchdog claims.

Woolworths dropped the marketing campaign after the ACCC brought legal action against it.

Coles made its defence in February but the court's final judgment will be withheld until both supermarket juggernauts have presented their cases.

The commission alleges the conduct involved 266 products sold by Woolworths at different times across 20 months between late 2021 and mid-2023, impacting tens of millions of sales by itself and Coles.

The product list was pared down to 12 agreed items to be scrutinised in court, including a family pack of Tim Tam biscuits, Carman's classic fruit and nut muesli bars and Sakata rice crackers.

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The watchdog is not suggesting Coles and Woolworths colluded or engaged in anti-competitive behaviour as part of the alleged misleading conduct.

In a statement to AAP, Woolworths said it fundamentally disagreed with the claims and at no stage misled or deceived its customers.

"Following COVID, there was a period of extraordinary inflation, and we were acutely aware that customers expected Woolworths to provide value wherever possible," a spokesman said.

"Inflation also put pressure on our suppliers' costs, and we worked with them to reduce the inflationary impact on customers through our 'prices dropped' program."

Australia's supermarket sector has come under heavy scrutiny after cost pressures borne by the COVID-19 pandemic, leading to multiple inquiries.

One such probe found Australian supermarkets to be some of the world's most profitable, with margins expanding in the years after the pandemic.

The case resumes on Wednesday, for the second of a scheduled eight-session hearing.

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