Guest Post: The Drents Museum Heist

Another semester teaching Art Crime alongside Geoff Kelly at Harvard’s DCE Museum Studies program has come to a close. With it, I thought I’d share a spectacular student essay on the 2025 heist at the Drents Museum. It’s written by Sarah Hagglund, a Boston-based art historian who currently works in the Division of European and American Art at the Harvard Art Museums. Sarah graciously allowed me to share it here on Big Security. Enjoy. AA

City of Gold? The Drents Museum Heist

In the early morning of January 25, 2025, three hooded robbers blasted their way into the Drents Museum in Assen, Netherlands, and in a matter of minutes made off with millions in gold artifacts. For a town of less than 100,000 people, the museum holds a large presence, with a collection numbering more than the population, including the oldest canoe in the world and an early van Gogh. However, thieves instead targeted a special exhibition with gold relics on loan from the National History Museum of Romania—including the prized Helmet of Cotofenesti, a highly decorated gold helmet considered to be an “icon of Romanian cultural heritage” dating back to 450 BC (Fava). Although the thieves were apprehended in less than a week, three of the four stolen artifacts would not be recovered until 18 months later in early April 2026—after the Dutch government had to make an insurance payout to the Romanian Culture Ministry of 5.7 million euros (Moses). The Drents Museum heist is a textbook example of a smash-and-grab heist that not only shows the standard pitfalls of museum security, but also how future heists may continue to trend toward brute force.

Grainy security footage of the night of the heist shows three individuals with a duffle bag and sledgehammers in hand, prying open an exterior door of the museum (Watkins). Shortly thereafter, they detonate a small explosive device made from fireworks to gain entry (Lindeboom). In less than four minutes, the men smashed open the exhibition’s display cases and fled with the stolen artifacts. Police were notified of the explosion around 3:45am, but wouldn’t arrive until about 15 minutes later when the thieves and the golden artifacts were long gone (Drents Jan press release). This is a classic smash-and-grab heist, although the use of explosives is a somewhat unusual escalation (Clopés and Balcells 123). Especially with a rise in recent smash-and-grab heists, including the Louvre and Magnani-Rocca Foundation heists, the first thing the public, museum staff, and law officials alike question are the security measures in place, and this is often for good reason (Davich).

In the aftermath of the Drents museum heist, the press soon reported that the museum’s security system had failed the night of the heist and revealed that in the months prior, an insurance inspection at the museum had raised concern about the very weak points that the thieves would later exploit (Lindeboom and NL Times, March). Many museum heists happen when there are no security guards present and the Drents heist was no exception—although this allegedly went against the loan agreement with the National History Museum which had requested 24-hour security (Clopés and Balcells 116, Fava). However, it is important to note that most unarmed guards would not be able to stop a brute force break-in and, in the case of the Drents heist, certainly would not have been able to stop an explosive from detonating. It could be argued that a security member on staff could have notified the police sooner, but other than that, in the case of this heist a single night guard likely would not have been able to prevent the theft.

Beyond the lack of guards, it was also reported that the security system in the exhibition did not operate as intended according to Ernest Oberländer-Târnoveanu, the former director of the National History Museum. The system should have immitted a thick smoke meant to almost completely obscure the vision of any intruder, but in the case of Drents, “the smoke developed too slowly” (NL Times, March). Interestingly, even though they might have invested in what seems like a Hollywood-style security measure, it was also reported that a recent insurance review of the exhibition noted that the display cases holding the gold artifacts were not strong enough to withstand multiple impacts. In fact, it only took the thieves two blows with their hammer to shatter the displays and escape with the artifacts (Lindeboom). Although this is something the museum itself has not admitted to (and understandably so), it is puzzling that a situational smoke screen was invested in instead of the very cases that physically protected the artifacts. While it is certainly unrealistic to expect museums to implement every maximum-security measure possible while balancing expectations of public access, in the case of the Drents museum, it seems more could have been done to, at the very least, slow down the theft.

Although this heist had put major strain on the diplomatic relationship between the Netherlands and Romania, luckily, the thieves were apprehended and most of the artifacts were retrieved after about 18 months as a part of a plea deal made before the accused went to trial (Anderson). After the heist, there was a great amount of concern that the gold artifacts would be melted down for material because they would be impossible to sell, but even still, the helmet and two of the three gold bracelets were recovered largely undamaged (Anderson). No matter what captures the imagination of the public and press—such as the often theorized private collector commissioning the heist (Fava)—even the Drent Museum heist follows the broader trends seen across art heists around the world: the thieves were in an out in under 5 minutes, they used intimidation/force to break their way in, it was a group of 3 individuals (all men), and the artifacts were used as a bargaining scheme after the thieves were caught (Amore and Kelly; Clopés and Balcells 108-116).

Even though the motive for the heist remains somewhat unclear—one Dutch news source has claimed the assailants were tied to a motorcycle gang and hired by a Romanian crime group to steal the works as a bargaining chip for another more serious crime—the thieves themselves also follow a broader pattern of art heist perpetrators (Lindeboom et al). During the trial so far, not much has been said by the accused, but given the DNA evidence they left behind, the obvious purchasing of sledgehammers at a store in town beforehand, and two of the three men agreeing to a plea deal—these criminals were certainly not as clever as they likely thought they were (NL Times, April). Not to mention, they were apprehended in less than a week after the heist, so these individuals were not “professionals,” they were most likely just in it for the money. As is the case with many smash-and-grab heists, sometimes all it takes is quick planning and brute force to walk away with millions—even if only for a brief period of time.

The question of how to prevent brazen and violent robberies like these seem simple, but can be costly. Some would go as far as to say that “outstanding pieces of cultural heritage” should never leave their institutions nor be on display at all because of the rising danger of smash-and-grab heists (Fava). How does a museum balance public access and the civic duty of preserving and interpreting important collections while also assessing the real risks of theft and permanent damage? If anything can be learned from the Drents heist it is to undertake independent security reviews consistently and ensure their recommendations are heeded as a high priority. As museum budgets are often planned years in advance, it is essential to work in contingencies that allow for immediate action on security concerns or even to install upgrades as technology improves, rather than implementing changes only as a reaction to an unfortunate event. Although, of course, museums are not to blame for robberies, more can be done to weave proven security measures into planning processes now, especially as smash-and-grab heists continue to be a real threat.

The Drents Museum did not deserve to be robbed, no matter what state their security was in. Thankfully most of the artifacts were returned and the perpetrators were apprehended, but there is still much to learn from this heist even after the dust settles. If anything, this heist highlights the real vulnerabilities museums face in attempting to properly protect art and artifacts of significant value, especially for temporary exhibitions that have needs beyond standard museum operations. Smash-and-grab heists may not be fully preventable, but with each heist, museums can learn more about what can be exploited and better weigh the risks of their displays and day-to-day operations. The Drents Museum is not unique among its counterparts, but how all museums choose to react is what will determine where thieves might strike next. In reality, no matter what a museum does to prepare, as former FBI agent Robert Wittman notes: “If criminals knowingly take the risk of being caught, then almost no security measure is enough to stop them” (Lindeboom).

Works Cited

Amore, Anthony and Geoffrey Kelly. “The Art Thief.” Art Crime: Implications and Investigations, 2 March 2026, Lecture.

Anderson, Sonja. “Thieves Who Allegedly Stole an Ancient Gold Helmet Belonging to a Lost European Culture Just Returned It.” Smithsonian Magazine, https://www.smithsonianmag.com/smart-news/thieves-allegedly-stole-gold-helmet-lost-european-culture-returned-it-180988487/. Accessed 3 May 2026.

“Archaeological Masterpieces Stolen from Drents Museum in Assen.” Drents Museum, https://drentsmuseum.nl/en/news/closed-because-of-recent-events. Accessed 25 April 2026.

Clopés, Sandra, and Marc Balcells. “The Science of Art Theft: Using Data to Identify Criminal Patterns, 1990–2022.” International Journal of Cultural Property, vol. 32, no. 2, May 2025, pp. 105–31. DOI.org (Crossref), https://doi.org/10.1017/S0940739125000098.

Davich, Julie Brener. “The New Museum-Heist Playbook: In and Out in Three Minutes Flat.” Wall Street Journal, 1 Apr. 2026. Arts. www.wsj.com, https://www.wsj.com/arts-culture/fine-art/museum-heist-italy-magnani-rocca-foundation-b0f9675d.

Fava, Mirta Aktaia. “The theft of the golden Helmet of Cotofenesti: analysis and scenarios.” The Journal of Cultural Heritage Crime, Feb. 2025, https://www.journalchc.com/2025/02/04/the-theft-of-the-golden-helmet-of-cotofenesti/.

Lindeboom, Alies. “In Twee Klappen Bij Gouden Helm: Drents Museum Was Gewaarschuwd Voor Zwakke Vitrines.” RTL.Nl, 28 Nov. 2025, https://www.rtl.nl/nieuws/artikel/5541063/beveiling-drents-museum-kende-zwakke-plekken.

Lindeboom et al. “Verboden Motorbende Betrokken Bij Roof Gouden Helm Drents Museum in Assen.” RTL.Nl, 21 May 2025, https://www.rtl.nl/nieuws/artikel/5509935/motorbende-betrokken-bij-kunstroof-assen.

Moses, Claire. “Ancient Artifacts Stolen in Dutch Museum Heist Are Recovered.” The New York Times, 2 Apr. 2026. World. NYTimes.com, https://www.nytimes.com/2026/04/02/world/europe/museum-heist-netherlands-helmet-romania.html.

Prosecutors Seek up to 66-Month Prison Terms for Romanian Gold Stolen in Museum Heist | NL Times. 14 Apr. 2026, https://nltimes.nl/2026/04/14/prosecutors-seek-66-month-prison-terms-romanian-gold-stolen-museum-heist.

Security System Failed during Drents Museum Gold Theft, Says Romanian Curator | NL Times. NL Times, 26 Mar. 2025, https://nltimes.nl/2025/03/26/security-system-failed-drents-museum-gold-theft-says-romanian-curator.

Watkins, Ali. “Thieves Blow Up a Dutch Museum Door to Steal a Golden Helmet.” The New York Times, 26 Jan. 2025. World. NYTimes.com, https://www.nytimes.com/2025/01/26/world/europe/art-theft-drents-contofenesti-amsterdam.html.