PAROLE authorities assessing Gerard Baden-Clay's release down the track have been warned to treat anything from his mouth with scepticism.

Justice John Byrne said Baden-Clay was given to lies and public deception as he sentenced Baden-Clay to life imprisonment, which translates to a 15-year non-parole period.

He said Baden-Clay murdered his wife on April 19, 2012, and disposed of her body in an "undignified way" when he dumped her over a ledge beneath the Kholo Creek bridge and left her lying in mud.

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Justice Byrne said Baden-Clay then worked to cover up his actions.

"Your shameful conduct after murdering Allison bespeaks a profound absence of remorse," he said.

"You used a razor to cut yourself near where she had scratched you, trying to disguise the injury she inflicted in defending herself.

"You drove around the streets of Brookfield pretending to look for her.

"You have insinuated mental illness may have led to drug overdose or suicide.

"Besmirching Allison's memory in that way is thoroughly reprehensible.

"You have no criminal history but you are definitely not of good character.

"The community, acting through the court, denounces your lethal violence."

Justice Byrne said Baden-Clay succumbed to the pressure of his double life and his financial pressures the night he killed his wife.

"The killing was not pre-mediated but it was violent," he said.

"That night you were under considerable stress.

"The prosecution suggested you smothered Allison and that looks likely.

"But whatever the mechanism, your violent attack caused her death.

"Her fingernails scratched your face, the act of a desperate woman struggling for life.

"Those marks are only consistent with your guilt."

Baden-Clay has already served 762 days in pre-sentence custody since his arrest on June 14, 2012.


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