Josie Murray, the grandparent of missing four-year-old boy Gus Lamont, has appeared in court for the first time over firearms charges unrelated to the case.

Murray faced Adelaide Magistrates Court on Friday, where she was sentenced after pleading guilty to acquiring, owning or possessing a sound moderator, also known as a silencer or suppressor.

The item, used to reduce the noise from gunshots, was found in the property during a search for Gus on January 15.

The 75-year-old was charged in February and pleaded guilty in writing ahead of her court appearance.

The court was told that Murray had owned the silencer legally for several years, but when the law changed in 2017 requiring permission to own the item, she did not inform authorities of it being in her possession.

Murray’s lawyer Andy Ey said it had been a “very difficult time” for his client.

“To address the elephant in the room, this has been an extremely difficult time for her family – her grandson went missing last year,” he said.

“This is a serious matter, but it is not some James Bond movie where a villain or assassin is walking around corners taking out targets with barely the whisper of a gun.”

She was fined $10,500 and disqualified from gun ownership for five years.

Gus went missing from the Oak Park Station property in September 27, 2025.

Police have returned to the site and conducted multiple investigations, but no new evidence has since been found.

The charges are not connected to the four-year-old’s disappearance.

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