Torn papers found in a bin at the Dunlop house where Gabrielle Woutersz allegedly murdered her mother were reconstructed to reveal the words "RIP Cheryl Woutersz", forensic experts have told a court.
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Woutersz, 25, is on trial in the ACT Supreme Court accused of fatally attacking her mother, Norma Cheryl Woutersz, 56, in October 2014.
It's alleged Woutersz, who had only recently arrived from interstate, heard voices in her head as she repeatedly bludgeoned her mother's head with a hammer before trying to bury her body in a garden bed in the backyard.
Woutersz was arrested after her father arrived home to find his wife dead and with significant head injuries.
Her defence team is not disputing she killed her mother, but says she was mentally ill and should not be held morally responsible for her death.
Prosecutors have argued her altered state of mind was linked to her long history of drug use, including ice.
On Wednesday, the jury heard evidence from forensic scientist Belinda Robinson, who spoke of her analysis of numerous items seized from the Dexion Place home.
Ms Robinson said projected blood stains were found on the handle of a hammer seized from the house's garage, as well as on the tool's claw and head.
Forensic biologist Andrew Preston said infrared camera technology and swab tests revealed blood on the hammer matched Mrs Woutersz's DNA profile.
The court also heard forensic document examiners had reconstructed a pile of torn up papers found inside a bin outside the bathroom.
Written on one piece of paper were the words of a prayer, while another sheet revealed the phrase: "RIP Cheryl Woutersz".
The Crown wrapped up its case against Woutersz part-way through Wednesday.
Defence witness Owen Samuels, a consultant forensic psychiatrist who had treated Woutersz behind bars said, in his opinion, she had schizoaffective disorder.
Dr Samuels said he believed Woutersz suffered a "functional and enduring mental illness", as opposed to a drug-induced condition.
The court was told she experienced paranoid delusional beliefs towards her mother soon before the killing, believing Mrs Woutersz was "hoodwinking" her and trying to poison her food.
She thought her mother was a reincarnated man who was going to hurt her, and by killing her she would be "saving the world world from her evil", the court heard.
Under cross-examination from the prosecution, Dr Samuels said he'd excluded the possibility Woutersz had fabricated her symptoms.
"I'm of the opinion she's suffering a bona fide mental illness. What we see is a well-established delusional illness."
Dr Samuels said Woutersz had displayed a "consistent, well-established delusional belief system", many of which had religious themes, and meant she'd heard the voices of Satan, Lucifer and Jehovah telling her to act for some time.
Also among her delusions was a belief she was betrothed to Hollywood actor Gene Wilder and had three children with him, he said.
The trial continues before Chief Justice Helen Murrell.
