The trial of a man accused of murdering a Victorian grandmother is aborted after a local TV news bulletin broadcast inaccurate information, and details that had not been heard by the jury.

Senior Constable Edward Barnett was shot and killed attempting to stop an armed robber in 1858. Now he has finally been honoured with one of Victoria Police's most prestigious medals.

Police arrest a Victorian man over the stabbing murder of Adelaide woman Suzanne Poll at a shop in April in 1993 after a DNA breakthrough.

The daughter of 1993 Adelaide murder victim Suzanne Poll has thanked police for their efforts in investigating her mother's death. A Victorian man has been extradited to South Australia charged with Ms Poll's murder.

A Victorian man accused of murdering Adelaide mother-of-two Suzanne Poll at her workplace in 1993 will plead not guilty to the charge, a court has heard.

A woman on trial accused of murdering her partner allegedly poisoned him with a "cocktail of dangerous medication" so she could benefit financially from his death, an Adelaide court is told.

An Adelaide judge remains tight-lipped on his reasons for declaring a mistrial in the case of a woman accused of poisoning her partner with a cocktail of dangerous medication.

Triple murderer Matthew De Gruchy has been driven away from Sydney's Long Bay jail after serving 23 years of his 28-year sentence for bludgeoning to death his mother and younger brother and sister.

A major crime review into the suspected murder of three-year-old Cheryl Grimmer, who was taken from a Wollongong Beach almost 50 years ago will be conducted, as her family desperately pleads for the state coroner to hold a second inquest into her death.

Stephen Grimmer, the brother of murdered toddler Cheryl Grimmer who disappeared in 1970, pleads guilty to indecently assaulting a 14-year-old girl.

A property search fails to uncover the remains of missing man Michael Purse, but SA Police say two men they suspect of murdering him are already in custody for unrelated crimes.

Convicted killer Wendie-Sue Dent will ask South Australia's highest court to acquit her of murder after a jury found she poisoned her partner with a lethal dose of prescription medication to inherit his $300,000 estate.

A white former police officer and his son are arrested and charged with the murder of an unarmed black man whose death had been captured on video.

A 37-year-old woman is in custody on charges of murder and attempted murder after a fatal head-on collision in Western Australia's north-west.

Coroner Barry King warns police of probable adverse findings against them for their incompetence during the initial investigation into the 1975 killing of Perth brothel madam Shirley Finn, as he closes an inquest into her murder which he says will likely remain unsolved.

The 2016 killing of a Canberra man is portrayed as a "cold-blooded plan", designed to silence him over an earlier machete attack, on the first day of an ACT Supreme Court trial.

MORNING BRIEFING: Michael Ferguson says union bosses have hit a 'new low' and a court hears that a Launceston man accused of murder said his alleged victim "is going to pay".

MORNING BRIEFING: The ex-girlfriend of a woman who fell to her death from a Sydney apartment block is expected to be charged with her murder, while a backpacker says the alarm about Theo Hayez's disappearance should have been raised much earlier.

Police investigating the alleged murder of Kim Chau whose body was found in a luxury Adelaide home say they found a "number of items" of interest during a search for evidence at a rubbish dump.

Police and State Emergency Service volunteers are scouring the park where Shaun Thomas Russell, 36 was killed in Adelaide's southern suburbs.

An arrest warrant is issued for a man and a woman wanted in connection with the fatal bashing of Hackham West man Shaun Russell, whose body was found in a park south of Adelaide.

A man and a woman are arrested in Adelaide's north and will face charges over the alleged murder of Hackham West man Shaun Russell, who was allegedly beaten before he died.

A man and a woman charged with the murder of a man in a park in Adelaide's southern suburbs will remain behind bars until July, after a magistrate granted an adjournment to allow DNA evidence to be analysed.

A sixth man wanted over the alleged 2012 shooting murder of Adelaide panelbeater Jason De Ieso is arrested in Queensland, with SA Police saying they will seek to extradite Kyle Pryde from Brisbane.

The family of missing man and suspected murder victim Michael Purse makes an emotional plea for information on his fate, with his mother breaking down as she described her anguish.

A Hells Angels bikie who was this week extradited from Queensland to be charged over the murder of Jason De Ieso in 2012 has appeared in an Adelaide court for the first time.

A recently released rapist and murderer was among a "conga line" of people who offered to testify for the prosecution in another long-running murder case, a court hears.

Accused wife-killer Peter Dansie was engaged in online chats with two women and was ready to fly to China with a bag of sex toys and condoms shortly after his wife's death, it can now be revealed.

Two years after Troy McLean was fatally stabbed in a road rage incident, his family tells an Adelaide court of its heartbreak, with his son hoping his father's killer goes to jail forever.

South Australian champion boxer Musa Alzuain was seen in the possession of the same type of firearm as the one that was used to gun down Jason De Ieso (pictured) in 2012, a court hears.

A woman, who was 14 at the time, has been charged with the murder of a baby boy in 1995 in outback Western Australia.

A 38-year-old woman accused of murdering her newborn baby 24 years ago in the toilets of a remote WA caravan park is allowed to return home to Victoria to await the outcome of the case.

A cold case investigation into the death of a baby in a caravan park in WA's Goldfields 24 years ago takes another twist, with a 55-year-old Queensland man charged with historic child sex offences.

Trevor Whybrow will spend a minimum of 17 years behind bars for the "extremely violent" assault which resulted in the death of his friend, Barry Moffat, after he "touched him up" in bed.

Journalist Andrew McGarry covered the trial of one of Australia's most notorious serial killings. Two decades since police made the gruesome discovery in a disused bank vault, he looks at the similarities between the actions of ringleader, John Bunting, and George Orwell's novel, Nineteen Eighty-Four.

A man is charged with the murder of another man at a home in South Australia's Mid North region in the early hours of Sunday morning.

The husband of murdered outback nurse Gayle Woodford says new protections for nurses named in her honour are necessary, but is worried healthcare workers could still be at risk.

A Coober Pedy man has been charged with murder following the alleged stabbing of another man in South Australia's far north.

A man pleads guilty to killing a relative whose bones were found in a fireplace of a home in South Australia's Mid North eight years after the man went missing.

South Australian police say they have discovered the bones of murdered man Martin Meffert during a dig at a property in the state's Mid North today.

A Flinders Ranges woman who killed a man after ramming him with her ute as part of a family dispute over a trailer is found guilty of manslaughter, not murder, with an Adelaide judge saying she "cannot be sure" the woman intended to kill.

When new laws were introduced following the murder of remote area nurse Gayle Woodford in outback SA in 2016, her family and friends were strongly supportive but they now believe a crucial loophole remains.

A man who was a teenager when he murdered his relative whose bones were later found in rural SA receives a mandatory sentence of life imprisonment, but his non-parole period has not yet been set.

The NSW woman's remains were found in bushland two years after her disappearance in 2014. Today a judge has dismissed the jury in the trial of Ms McBride's ex-partner.

MORNING BRIEFING: NSW Police arrest a man in Guildford over the shooting murder of Parramatta FC soccer player John Odisho, while Barnaby Joyce leads an anti-abortion rally in Martin Place.

A leading surgeon fears a gravely-ill convicted murderer could die within a year if he is deported to Papua New Guinea.

The New South Wales Supreme Court has heard a man accused of killing a knife-wielding intruder was annoyed but had no intention of killing the man after a chase and struggle.

Five men are charged over the murder of a Queensland man who was beaten to death with a steel bar before his mutilated body was dumped, set alight and eventually found by firefighters near Taree.