Five days after thieves smashed a glass case and snatched a 2,500-year-old solid gold collar from a Burgundy museum, France's Culture Minister Catherine Pégard unveiled a national security plan for the country's cultural institutions on 27 July 2026.

The plan, officially titled "Action plan for the security of heritage establishments and places of conservation of cultural goods," comprises 33 measures backed by a €30 million budget spread over three years, according to The Art Newspaper. It covers infrastructure upgrades and staff training, with the stated goal of creating "a reinforced culture of risk" across France's museums, monuments and churches Ministry of Culture.

The catalyst was brazen. On 23 July 2026, two men walked into the Musée du Pays Châtillonnais in Burgundy in front of visitors, smashed a display case and made off with the collar of the Lady of Vix — a one-pound solid gold Celtic artefact dating to around 500 BC, discovered in 1953. Pégard confirmed that one suspect has been arrested in connection with the theft The Art Newspaper.

The burglary is the latest in a string that has rattled French cultural institutions. The French crown jewels were stolen from the Musée du Louvre on 19 October 2025. Louvre director Christophe Leribault reopened the museum's Apollo Gallery on 22 July 2026 — emptied of its jewellery. Further thefts have hit a museum dedicated to the jeweller Lalique in Alsace and the Musée du Hiéron in central France.

The Musée du Pays Châtillonnais had spent €150,000 over two years on security reinforcement, including gates and cameras, before the collar was taken. That detail sharpens the challenge the new plan confronts: even museums that have invested in protection remain vulnerable.

Since the Louvre heist last October, the Ministry of Culture has mapped over 3,100 museums, monuments and churches as sensitive sites. Pégard told La Croix that 482 priority security projects have already been funded across French territory through the new envelope. The Ministry has also directed that the most vulnerable objects in museum collections must be placed in safe storage.

Not every proposal gained traction. Dominique Garcia, president of France's National Institute for Preventive Archaeological Research (INRAP), urged museums to put silverware and jewels in safes and display copies instead. Pégard dismissed the idea. Replacing masterworks with replicas, she said, would be "a grave mistake." She also ruled out posting armed guards in galleries.

The plan follows three parliamentary reports on museum security. In March 2026, Pégard had already signalled her intention to amend the Louvre's renovation plan — known as "Louvre Renaissance" — to build in stronger security provisions from the outset, rather than retrofit them later Le Monde.

For now, the Lady of Vix collar remains missing. France's museums are counting the cost — and rethinking what stands behind the glass.