Police investigations in South Australia's Limestone Coast have resulted in charges against two Mount Gambier residents following the discovery of explosive materials during a property search conducted near Kingston SE. The operation took place on Thursday, with developments continuing today, Friday 7 August 2026, making it one of the region's significant police matters.

According to South Australia Police, officers searched a rural property south of Kingston SE where they allegedly located gunpowder. A specialist police detection dog was then used to examine the property further, leading officers to allegedly uncover a concealed cache of unlicensed detonators. Because of the nature of the items discovered, SAPOL's Bomb Response Unit attended the scene to safely secure and remove the explosives.

Authorities reported that 11 naval ordnance laboratory detonators and seven electrical detonators were seized during the operation. The explosives were removed for further examination as part of the ongoing investigation. Police stated that public safety remained their priority throughout the operation.

A 48-year-old Mount Gambier man was arrested and charged with firearms-related offences, including allegedly breaching a firearms prohibition order. He appeared before the Mount Gambier Magistrates Court today and did not apply for bail. The matter has been adjourned for further court proceedings.

Police also arrested a 24-year-old Mount Gambier woman. She has been charged with allegedly possessing unlawfully acquired ammunition and hindering police. She was granted bail and is scheduled to appear before the Mount Gambier Magistrates Court at a later date.

Investigators have not released further details regarding the origin of the explosive materials, and inquiries remain ongoing. Authorities continue to examine the evidence collected during the search while determining whether any additional offences may have occurred.

South Australia Police have emphasised the dangers associated with storing explosives unlawfully and reminded the public that suspected illegal firearms or explosive materials should be reported immediately. Specialist units are equipped to safely manage hazardous materials and minimise risks to the community.

Today's court appearance marks the latest stage in the investigation, with further legal proceedings expected in the coming weeks. The case remains before the courts, and the charges have not been proven.