Heart-wrenching photos of discarded belongings have punctuated the double murder trial of Beau Lamarre-Condon, but questions remain about how a victim’s DNA ended up on his gun.

Hundreds of photos of the blood-stained aftermath of the deaths of Luke Davies and Jesse Baird have dominated the second week of their alleged murderer’s trial.

Lamarre-Condon, 31, a former senior constable, has pleaded not guilty to the February 2024 murders. He says Davies and Baird died of gunshot wounds sustained in two separate violent struggles in Baird’s Sydney home.

Defence barrister John Stratton SC on Thursday will conclude cross-examining crime scene officer Senior Sergeant Bronwyn Lansley, who agreed Davies’ DNA was found on Lamarre-Condon’s gun.

“A swab was taken from the trigger of the gun … Luke Davies cannot be excluded as the major [DNA] contributor?” Stratton asked.

“That is correct,” Lansley said.

Stratton has previously suggested that Davies accidentally killed himself in a struggle, while outlining Lamarre-Condon’s claim for self-defence.

He told jurors that Lamarre-Condon never planned to kill or cause any harm to anyone at the home.

Forensic evidence regarding belongings found in a bowling club skip bin was earlier shown to the jury. It included numerous photos of items allegedly with the blood of Baird, 26, and Davies, 29.

Prosecutors say Lamarre-Condon murdered Jesse Baird and Luke Davies in Baird’s Paddington home.

Prosecutors say Lamarre-Condon – who had previously dated Baird – noticed the skip bin as a place to dump the belongings when driving through Cronulla the day after killing the two men.

Police say they found bed sheets, clothes and a chest of drawers – allegedly with the DNA of the two dead men – in the overflowing bin.

On a quilt cover, a footprint can be identified in dried blood. Lansley said it matched the tread of a pair of Adidas shoes found in Bungonia, where the two men’s bodies were discovered.

Also dumped were a set of four heavily stained AFL goal umpiring flags and league-branded shorts still in their packaging, the jury heard.

Baird umpired in 62 AFL games, including two finals, during a four-year career in league football.

Personal items, including a stuffed elephant toy, a silver watch and a wallet belonging to the two men, were also dumped in the industrial bin by the officer, the jury heard.

Bullets and significant traces of blood were found throughout Baird’s Paddington house, much of it underneath the floorboards.

Lansley testified that three cars – two hired by Lamarre-Condon and his personal vehicle – were extensively examined by forensic investigators. Numerous blood stains were found.

The trial continues.

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-AAP