Canberra's Duplicate Image Problem: What Officials, Experts and Key Figures Are Saying

A technical problem that might sound like bureaucratic housekeeping is turning into a genuine policy flashpoint in Canberra. Duplicate images embedded in government digital records, planning databases, and publicly funded research repositories are distorting data integrity assessments across multiple ACT agencies — and the people responsible for fixing it are not all reading from the same page.

The issue has gained traction in 2026 partly because of scale. The ACT government's Digital Strategy 2025–2028, published by the ACT Digital Government division, committed to a whole-of-government approach to data quality. But practitioners working inside agencies say duplicate image files — scanned planning documents, heritage photography archives, infrastructure inspection records — are creating downstream errors in automated systems that depend on clean inputs. The timing matters: Light Rail Stage 2B, the extension through Civic toward Commonwealth Park, involves digital asset management systems that pull from those same repositories.

What the Experts Are Actually Arguing

Researchers at the Australian National University's School of Computing are not shy about the stakes. Staff working on the university's machine learning infrastructure — which processes image datasets shared with federal agencies under research partnership agreements — have flagged that duplicate images in training sets can skew model outputs by measurable margins. ANU has published peer-reviewed work noting that even a five percent duplication rate in a labelled image dataset can degrade classification accuracy significantly, depending on the model architecture involved. That figure has started appearing in briefing documents circulated within the ACT's Digital Government division on Macquarie Street.

The University of Canberra's Health Research Institute, based on Kirinari Street in Bruce, faces a parallel version of the problem. Medical imaging archives shared between UC and Canberra Health Services for research purposes require rigorous deduplication before they can be used in any diagnostic AI pilot. A UC spokesperson confirmed the institute has formal deduplication protocols in place, though the spokesperson declined to detail the specific tools used or the volume of records affected.

At the federal level, the Australian Bureau of Statistics, headquartered on Belconnen's Benjamin Way, has long maintained guidance on data deduplication for census-adjacent datasets. The ABS published updated administrative data integration guidelines in March 2026, which explicitly flag image-format records as an underexamined category in government data quality frameworks. That document is now being cited by ACT procurement officers reviewing contracts for digital records management systems.

Agencies Under Pressure to Act

The ACT's own records authority, Access Canberra, has responsibility for enforcing the Territory Records Act 2002. The legislation does not specifically address digital image duplication, a gap that several policy analysts at the Canberra Institute of Technology's governance programs have pointed to in recent submissions to the ACT Legislative Assembly's Standing Committee on Justice and Community Safety. The committee received at least three written submissions on digital records integrity between January and June 2026, though the full texts have not yet been tabled publicly.

Gungahlin and Belconnen, the two fastest-growing suburban corridors in the ACT, generate the largest volumes of new planning imagery — subdivision proposals, development applications, heritage assessments. The ACT Planning directorate processes hundreds of such submissions monthly, and each submission can include multiple image attachments. Without an automated deduplication layer in the directorate's HPRO records system, the same photograph can be logged under different reference numbers across linked applications.

For residents and developers, the practical consequences include delays when officers manually reconcile conflicting image records against site inspection reports. A development application for a multi-unit block in the Gungahlin town centre area, for instance, could sit in a queue longer if supporting imagery has been flagged for manual review due to apparent duplication alerts.

The ACT government has indicated it plans to release a revised Digital Records Management Framework before the end of the 2026 calendar year. Agencies have been asked to conduct internal audits of image-heavy record collections by September 30. Whether the procurement process for new deduplication tooling follows immediately after, or waits for the next budget cycle in May 2027, will likely determine how quickly the problem moves from discussion to resolution.