Canberra's Duplicate Image Problem: What Happens Next and the Key Decisions Ahead

Thousands of duplicate images are clogging the digital archives of ACT government agencies, universities and public sector bodies across Canberra, and administrators are now under pressure to decide how — and how fast — to fix it. The problem is not new, but a combination of cloud migration projects and tightening storage budgets has pushed the issue to the top of the agenda at several Civic-based agencies this financial year.

The trigger is largely fiscal. From July 1, 2026, the ACT Government's whole-of-government cloud storage contracts entered a new pricing tier, meaning departments that have allowed duplicated files to accumulate are now paying measurably more for redundant data. Digital asset managers at agencies along London Circuit and in the Nishi precinct in Newtown have been asked to produce remediation plans by the end of August.

Why This Matters More Than a Housekeeping Exercise

Duplicate images are more than an irritant. For agencies that manage public records — including the ACT Environment, Planning and Sustainable Development Directorate, which holds years of satellite and aerial imagery linked to planning decisions in growth suburbs like Gungahlin and Belconnen — a duplicate can become a legal liability. If two versions of the same image carry different metadata or different edit histories, it creates ambiguity in legal proceedings and freedom-of-information responses. The ACT Archives Act 2022 imposes specific obligations around record integrity, and duplicates that have been edited or mislabelled potentially breach those obligations.

The Australian National University's digital collections team at the Chifley Library on the Acton campus has been wrestling with a related challenge. ANU manages one of the country's largest institutional repositories of research imagery, and a review begun in early 2026 identified that a significant portion of the image library held across its Schools of Art and Environment contained redundant files created during successive platform migrations since 2018. The University of Canberra's library service on Kirinari Street in Bruce faces comparable questions as it consolidates collections ahead of a systems upgrade scheduled for the third quarter of 2026.

Three Decisions That Will Define the Outcome

Administrators across the sector face three choices in the coming months, and none of them is straightforward.

First, there is the question of tooling. Automated deduplication software can identify and flag duplicate files at scale, but it cannot always distinguish between a genuine duplicate and two deliberately retained versions of the same image — one original, one approved for public release. Choosing the wrong tool, or configuring it poorly, risks deleting records that should be kept. Several ACT Shared Services clients are evaluating at least two commercial platforms, with procurement decisions expected before October 2026.

Second, agencies must decide who owns the process. In the ACT public service, digital records management has historically sat between ICT teams and corporate services, with no single directorate holding clear authority. The ACT Government's Digital Strategy, released in 2024, nominates the Digital, Data and Technology Solutions branch as the coordinating body, but operational responsibility for individual archives varies by agency. Getting alignment across directorates that share storage infrastructure but maintain separate governance structures will take negotiation, not just a policy memo.

Third, and most consequential, is the question of what to do with images that cannot be confidently categorised. Deletion carries risk. Retention costs money. Some agencies are considering a tiered archive model — moving unverified duplicates to cold storage rather than deleting them, accepting a lower ongoing cost while preserving the ability to restore files if a future audit requires it. Cold storage rates on the government's current AWS-based contract are understood to be substantially cheaper than active storage tiers, though agencies would need to factor in retrieval costs.

For public servants in Canberra dealing with this on the ground, the practical advice from digital records specialists is consistent: document every decision, do not run deduplication scripts on live production systems without a verified backup, and escalate any image that is linked to a planning decision, legal matter or ministerial brief before touching it. The cleanup is necessary. The shortcuts are not worth it.