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

Thousands of duplicate images are clogging the digital asset libraries of ACT government departments, cultural institutions and federal agencies headquartered in Canberra — and a hard deadline is forcing administrators to decide, sooner rather than later, how to fix it. The National Archives of Australia, based on Queen Victoria Terrace in Parkes, has flagged October 2026 as a compliance checkpoint under its updated Digital Continuity framework, putting image-management practices squarely on the agenda for every agency that stores public records electronically.

The problem is not trivial. Duplicate images inflate storage costs, slow retrieval systems and — more critically for accountability — create version-control confusion when records are requested under freedom-of-information laws. For a city where the public service is the dominant employer, bad digital housekeeping carries legal and reputational weight that private-sector organisations rarely face.

Where the Pressure Points Are

The Australian National University on Acton Peninsula and the University of Canberra in Bruce both manage research image repositories that have grown substantially since the COVID-era shift to remote data collection. Neither institution is subject to the Archives Act in the same way federal departments are, but both receive Commonwealth research funding that carries its own record-keeping conditions. The practical effect is the same: someone has to audit what exists, decide what is canonical, and delete or archive the rest.

Within the ACT government, the question lands most heavily on Transport Canberra and City Services, which maintains an extensive photographic record of infrastructure assets — everything from light rail corridor imagery along Flemington Road to stormwater drain inspections in Belconnen. Infrastructure photography is a category notorious for duplication: field officers upload images from mobile devices, then the same files arrive again via automated sync, and occasionally a third copy enters the system through a project-management platform. By the time a record is three years old, it is not unusual for a single asset inspection to be represented by a dozen near-identical files.

Deduplication software can resolve the straightforward cases automatically, matching files by hash value or pixel-level comparison. The harder decisions involve images that are similar but not identical — different exposures of the same pothole, or sequential frames from a site walk. Those require human judgment, and human judgment costs time and money. Current market rates for a Canberra-based digital archivist with records-management certification sit around $95,000 to $110,000 a year, and the specialist contractors who handle large-scale deduplication projects typically charge between $150 and $220 an hour.

The Decisions That Cannot Wait

Three choices are coming into focus for agencies working through their options before October. First, whether to run an automated first pass and accept that some genuinely distinct images will be incorrectly flagged as duplicates — a faster and cheaper approach, but one that carries risk in litigation or FOI contexts. Second, whether to outsource the work to a contracted digital services firm, several of which operate out of the Canberra CBD along Northbourne Avenue and Marcus Clarke Street, or to bring in temporary staff. Third — and the option generating the most internal debate — whether to simply freeze new uploads to affected repositories until a proper audit is complete, which disrupts ongoing project work but stops the backlog from growing.

The National Archives framework does not mandate a specific deduplication method, but it does require agencies to document whatever methodology they choose and to demonstrate that their chosen approach is fit for the record types involved. That documentation requirement means the decision is not just operational; it creates a paper trail that future audits will scrutinise.

For institutions like the ACT Heritage Library on London Circuit, which holds photographic collections donated by community members, the calculus differs again. Donated collections often contain intentional duplicates — reprints, copies sent to different family members — where deletion would destroy historical context. Staff there are expected to develop a separate policy for community-sourced imagery, distinct from the rules governing government-produced records.

Agencies that have not yet started their audits are effectively two to three months away from the compliance checkpoint with no room for delay. The decisions made in the next eight weeks will determine not just storage costs, but the integrity of digital records that public servants, researchers and citizens will rely on for decades.