The opening day of a landmark case in the Federal Court between the ACCC and Coles has adjourned.
The consumer watchdog is seeking to prove the supermarket giant breached consumer law by misleading customers with fake discounts.
Coles' legal counsel has told the court that the case hinged on whether the supermarket was justified in lowering the prices of a basket of goods, raising them for a brief period, and then lowering them again.
Earlier, lawyers representing the A-triple-C labelled the price discounts as "utterly misleading".
Police investigating the disappearance of four-year-old Gus Lamont on a remote South Australian station say they've charged a person with unrelated offences.
It's understood Gus Lamont's grandmother, Josie Murray, was arrested and charged with firearms offences, as police conducted another search of Oak Park Station, near Yunta.
Police say the charges aren't related to the disappearance of the boy from the property in September.
Earlier this month, they said a person living at the property was considered a suspect in Gus's disappearance, but stressed his parents weren't being investigated.
American journalist, Savannah Guthrie, has appealed to the kidnappers of her 84 year old mother, Nancy, to "do the right thing" and release her.
Police believe Nancy Guthrie was abducted from her home in Arizona two weeks ago .
They are now examining DNA from a glove recovered three kilometres away, which appears to match the pair worn by a masked prowler seen in doorbell camera footage.