Duplicate Images in Government Records: What Officials and Experts Are Saying

Digital records managers across the ACT public service are raising concerns about the scale of duplicate image files inside government content systems, with experts warning the problem is costing agencies time and storage budgets while creating compliance headaches under federal archiving obligations.

The issue has sharpened focus in mid-2026 as several Commonwealth agencies based in the Parliamentary Triangle and Barton undertake scheduled audits ahead of a July 31 reporting deadline under the National Archives of Australia's Digital Continuity 2025 policy framework. Duplicate images — the same photograph, scan or graphic stored multiple times under different file names or in different folders — inflate storage costs, slow search functions and create confusion about which version of a document is authoritative.

It is not a glamorous problem. But for a city where the public service is the dominant employer and digital recordkeeping is a legal obligation, it carries real weight.

What the Specialists Are Saying

Information management professionals working with ACT Government Directorate clients say the duplication problem typically emerges when agencies migrate legacy systems, merge teams, or onboard new content management platforms. The Australian National University's Research Data Storage Infrastructure program, which supports researchers across the Acton campus, has documented the pattern in academic settings: without automated deduplication tools, file libraries can balloon to three or four times their necessary size within two to three years of a major system migration.

The ACT Government's Digital Strategy — updated in 2024 — acknowledges the broader challenge of data quality across Shared Services ICT systems. Agencies running on the Territory Records Act 2002 are required to maintain accurate, accessible and non-duplicated records, and duplicates create a technical breach of that standard even if no immediate enforcement action follows.

Records consultants working out of offices in Civic and Fyshwick say the most common trigger for a duplicate image audit is a SharePoint or Microsoft 365 migration. Many ACT public sector bodies moved to Microsoft 365 environments between 2022 and 2025, importing legacy file structures that already contained years of accumulated copies.

The practical fix involves a combination of automated deduplication software — tools such as those used by Services Australia at its Greenway operations hub — and manual review protocols for images flagged as high-value or sensitive. Neither step is trivial. A medium-sized directorate with a decade of scanned correspondence and photographic records might hold hundreds of thousands of image files, and automated tools can misidentify near-duplicates as unique records if not properly configured.

Local Implications and Next Steps

For Canberra specifically, the stakes extend beyond storage bills. The ACT's growing suburbs — particularly Gungahlin and Belconnen, where land development documentation is voluminous — generate large numbers of cadastral and planning images each year. The ACT Planning directorate and the Environment, Planning and Sustainable Development Directorate both manage extensive photographic archives tied to development applications and environmental assessments. Duplicates inside those systems can, in documented cases, cause version-control failures — where a superseded site plan image is retrieved instead of the approved current version.

The National Archives of Australia, headquartered on Queen Victoria Terrace in Parkes, has produced guidance recommending agencies run deduplication reviews on a rolling 12-month cycle. Its Digital Preservation Guidance materials, available on the Archives' website, outline hash-based verification as the most reliable method for identifying true duplicates at scale.

Agencies facing the July 31 deadline have limited runway. Records managers advise that the immediate priority should be scoping exercises — identifying which repositories are most likely to harbour duplicates before committing to a full remediation project. Targeted pilots on high-volume image folders, rather than whole-of-system sweeps, are the approach most commonly recommended for agencies with constrained ICT budgets in the current federal fiscal environment.

The longer-term pressure is clearer still. As the ACT public sector moves further toward cloud-native storage and AI-assisted document retrieval, the quality of underlying image libraries will directly shape how useful those tools are. Dirty data going in means unreliable outputs coming out — a straightforward principle that records specialists say is still under-appreciated at the senior executive level.