An Australian woman who doused a longtime friend in petrol and set him on fire after becoming enraged by a comment he made has failed in her attempt to reduce her prison sentence.

Corbie Walpole’s appeal has been rejected, bringing another chapter to one of the country’s most shocking criminal cases.

The decision means the original jail term imposed over the attack will remain in place despite arguments that her mental health had not been properly considered during sentencing.

The case has continued to attract widespread attention because of both the extreme violence involved and the unusual arguments raised during the appeal process.

The attack occurred after a night of heavy drinking and drug use in the New South Wales border town of Howlong.

Walpole and Jake Loader had known each other for years and were socialising with friends before the situation spiralled out of control.

According to evidence presented to the court, tensions developed between the pair throughout the night.

Walpole later claimed she became increasingly angry after Loader allegedly made comments she considered sexist and provocative.

What happened next would change both of their lives forever.

The court heard Walpole retrieved a container of petrol and poured fuel over Loader while he was sitting outside.

She then ignited the fuel, engulfing him in flames.

The consequences were catastrophic.

Loader suffered severe burns across more than half of his body and required extensive emergency treatment. He was placed into an induced coma and spent months undergoing medical care and rehabilitation.

The injuries left permanent physical and emotional scars.

Medical evidence presented during the case described the attack as life-threatening.

Emergency workers and hospital staff fought to keep him alive in the critical days following the incident.

When Walpole was sentenced, the court considered the extraordinary seriousness of the offence as well as her guilty plea and expressions of remorse.

She was ultimately sentenced to more than seven years in prison, with a non-parole period requiring her to remain behind bars for several years before becoming eligible for release.

Her appeal focused largely on psychiatric evidence.

Lawyers acting for Walpole argued that the sentencing process failed to properly account for her mental health conditions and the impact the incident had on her after it occurred.

One of the more controversial aspects of the appeal involved claims that she developed post-traumatic stress disorder as a result of committing the offence.

Her legal team argued this should have received greater weight when determining the appropriate punishment.

They also challenged aspects of how expert psychological evidence had been assessed during sentencing.

Prosecutors opposed those arguments.

They maintained that the sentencing judge had properly considered the available evidence and that the severity of the attack justified the punishment imposed.

The prosecution also pointed to the significant role that alcohol and drug intoxication played during the events leading up to the offence.

After reviewing the arguments, the appeal court ultimately refused to interfere with the original sentence.

The decision effectively confirmed the earlier findings regarding both the seriousness of the crime and the appropriate level of punishment.

The ruling has generated strong public reaction.

Many Australians expressed sympathy for Loader and his family, noting the lifelong consequences of the injuries he suffered.

Others focused on the unusual nature of the appeal arguments and whether trauma experienced by an offender after committing a violent crime should influence sentencing outcomes.

The case has also prompted wider discussion about alcohol, drug use and violent offending.

Evidence presented during proceedings indicated Walpole had consumed an extraordinary amount of alcohol in the hours leading up to the attack, along with cocaine.

Legal experts note that intoxication is rarely treated as a mitigating factor in serious violent offences and can sometimes increase concerns about community safety.

For Loader, the legal proceedings have never been solely about punishment.

The physical recovery alone has involved multiple surgeries, extensive treatment and ongoing rehabilitation following injuries that nearly killed him.

The appeal decision now closes one of the final major legal avenues available to Walpole.

While the case will continue to be remembered for its shocking facts, the court’s latest ruling sends a clear message about how seriously the justice system views acts of extreme violence, regardless of the circumstances that led up to them.