A jury has heard it is "highly likely" that former Kings Cross nightclub owner John Ibrahim is the man whose DNA was found on the trigger of a gun hidden in his girlfriend's apartment.
Sarah Budge's lawyer told the NSW District Court the fact the DNA profile left on the gun, dubbed "Male One", matched DNA left on waxing strips used to remove a set of eyebrows - which Mr Ibrahim famously waxed off - left little other conclusion.
"It's overwhelmingly probable that John Ibrahim, or a person known to him, handled the gun," Simon Buchen SC told the jury on Wednesday.
Budge, a 29-year-old model and restaurateur who has dated Mr Ibrahim since 2013, has pleaded not guilty to three weapons possession charges after a stolen, defaced Glock 26 pistol and loaded magazine were hidden in a teapot box at the bottom of her bedroom wardrobe in August 2017.
The weapons were found by federal police when they raided a series of properties including Budge's Double Bay unit and Mr Ibrahim's Dover Heights clifftop home.
Budge has pleaded not guilty and claims she didn't know the gun was there.
She previously told the court Mr Ibrahim had told her he knew how the gun came to be in her apartment but wouldn't elaborate.
Mr Ibrahim has not been charged over the incident.
In his closing submissions, prosecutor Christopher Taylor told jurors Budge was trying to "pull the wool over" their eyes, arguing it's implausible she didn't know the pistol and ammunition were in her bedroom.
Mr Taylor invited the jury to think of where they would hide their own stolen pistol, offering solutions such as burying it in a tin in a national park.
Even if they had decided that breaking into their partner's flat was a good idea, the pistol could be hidden behind the fridge or in the toilet cistern, he said.
"Oh no, why not put it in a really obvious spot?" he said.
"It's an affront to common sense that someone comes into her apartment and puts it in prime shoe territory."
Budge's defence hit back at the suggestion, saying police photos of the wardrobe showed that next to the box containing the pistol was a broken lamp and some unused cushions.
He also noted Budge was in the process of unpacking at the time and had unpacked a teapot from the box, which she put away in the wardrobe.
He said this meant she had no reason to go back and look inside it, noting "she's not an organised person".
"She's an untidy person. That doesn't derogate from her good character," he said.
Earlier, Mr Taylor characterised Budge as an untruthful witness "or, at the very least, unreliable" for how she answered a question about seeing anything to suggest Mr Ibrahim had a connection with guns.
He said Budge may have thought of her boyfriend physically holding a gun when answering no but she added Mr Ibrahim was "anti-guns" and referenced his memoir.
In the memoir, the author claims he couldn't decide whether to take his hand off his gun to shake hands with corrupt cop Roger Rogerson when the pair met.
"It's an unforgettable little story, isn't it?" Mr Taylor told the jury.
The trial continues.
Australian Associated Press