Canberra's Digital Archives Battle Duplicate Images — Here's What Changed This Week

A quiet but consequential shift in how Canberra's public institutions manage their digital image libraries took hold this week, as the ACT Government's Digital Records and Information Management framework moved into its next compliance phase. The change requires agencies across the territory to audit and remove duplicate image files from shared repositories — a problem that has accumulated across multiple system migrations since at least 2019.

The issue matters more now than it might sound. With the ACT Public Service managing thousands of images tied to planning documents, infrastructure records, and public communications across fast-growing areas like Gungahlin and Belconnen, duplicate files create version-control failures. A planning officer in the Gungahlin town centre office and a counterpart in the Dickson-based Environment, Planning and Sustainable Development Directorate can end up working from different versions of the same site photograph — leading to errors in development assessment reports.

What Happened This Week

The ACT Government confirmed this week that the image-deduplication push is now a formal requirement under the territory's records management obligations, with agencies expected to demonstrate compliance by 30 September 2026. The directive covers all images stored in shared drives, content management systems, and cloud repositories used across the service. The Australian National University's digital collections team separately announced it is adopting a parallel process for its Chifley and Menzies libraries' archival holdings, where staff have identified thousands of scanned image duplicates accumulated during a 2022-23 digitisation program.

The University of Canberra's Faculty of Arts and Design, based on the Bruce campus, is also caught up in the wider clean-up. Its digital media archive — used by students and researchers — has reportedly been flagged internally for containing redundant files from successive database migrations. Neither institution has released figures on exactly how many files are affected, but comparable digitisation projects in other Australian universities have found duplication rates of between 15 and 30 percent of total image holdings.

For everyday Canberrans, the most visible consequence shows up in the ACT Government's public-facing planning portal, where uploaded development application images have sometimes appeared as multiples under the same application number. Residents near Flemington Road and the proposed light rail Stage 2 corridor have flagged the problem to local planning forums over the past six months, noting confusion when duplicate images show different site conditions from different survey dates without clear labelling.

What the Fix Looks Like — and What Comes Next

The deduplication process being rolled out is not a simple delete operation. Agencies are required to use file-hash comparison tools to identify exact duplicates, then apply a manual review layer for near-duplicates — images that are slightly different versions of the same subject. The ACT Digital office, which sits within the Chief Minister, Treasury and Economic Development Directorate on London Circuit, is coordinating training sessions for records officers across participating agencies through July and August.

For institutions like ANU and UC, the process has a research dimension too. Incorrectly deleted images can strip provenance data from archival collections, which is why both universities are understood to be cross-referencing their existing catalogue metadata before any file is removed. The National Library of Australia on Parkes Place, which holds digitised collections under commonwealth records law, is operating under separate federal guidelines but has been in contact with ACT agencies about compatible approaches.

Agencies that miss the September deadline face a compliance review process, though the practical penalties are administrative rather than financial at this stage. The more immediate pressure is reputational: development applicants and community groups who rely on the planning portal want clean, clearly dated image records — particularly as development assessment volumes in the inner north and Molonglo Valley continue to climb.

Anyone dealing with ACT Government digital systems who notices duplicate image entries on a public portal record can submit a correction request through Access Canberra's online service portal. The digital records team is also accepting direct queries from researchers and community organisations through the Chief Minister, Treasury and Economic Development Directorate's public contact channels.