Ertzaintza releases first crime data by detainee origin, sparking debate

Better to put the data out there clearly and without stigmatizing anyone
The Basque security chief defended the police force's new policy of publishing arrest data by geographic origin.

In the Basque Country, a regional police force has begun attaching a new variable to its crime reports: where the accused come from. The Ertzaintza's first statistical breakdown by detainee origin — showing foreign nationals comprising nearly two-thirds of arrests — arrives not in a vacuum, but in a political climate where fear of crime is rising and electoral competition is sharpening. The act of releasing data is itself a kind of argument, and in this case, the argument is being made by a governing party trying to control a conversation it can no longer afford to leave to its opponents.

  • Crime has surged to the top of Basque voters' concerns, creating urgent pressure on the ruling PNV to demonstrate it takes public safety seriously.
  • The release of origin-based arrest data — 64% foreign nationals among detainees — has immediately ignited controversy, with critics questioning whether transparency is cover for electoral maneuvering.
  • Opposition parties PP and Vox had been demanding exactly this data for months, meaning the government's disclosure hands them a statistical weapon they had been loudly requesting.
  • Senior PNV figures, including the mayor of Bilbao and the security chief, have made pointed remarks linking certain crimes to foreign nationals, signaling a deliberate rhetorical shift within the party.
  • The data is now public record, but whether it anchors a more honest debate or accelerates the weaponization of immigration and crime ahead of elections remains the defining open question.

In mid-October, the Basque police force quietly began including the geographic origin of detainees in every press release. Last Wednesday, they published their first full statistical report — and the numbers immediately ignited a political firestorm.

Between January and September 2025, the Ertzaintza recorded 80,111 crimes across Euskadi, resulting in 5,230 arrests and 23,528 people under investigation. The origin breakdown was striking: 35% of those arrested were Spanish nationals, while 64% were foreign nationals. Among those merely investigated, the gap narrowed — 57% Spanish, 43% foreign.

Security chief Bingen Zupiria, a PNV member, framed the release as a transparency measure designed to prevent distorted narratives about immigration and crime. But the timing is difficult to separate from politics. Crime has climbed sharply among Basque voters' top concerns, and the PNV — governing in coalition with the Socialists and facing electoral headwinds — is acutely aware that rival parties have been exploiting security anxieties to gain ground.

The PP and Vox had spent months demanding precisely this kind of origin-based data. By releasing it, the Basque government gave them what they asked for — though whether that defuses or intensifies the debate is far from settled. Meanwhile, prominent PNV figures have been sharpening their own language on crime: the new mayor of San Sebastián called for prison or expulsion for repeat offenders, while Zupiria himself linked knife attacks to foreign nationals without community roots.

The Ertzaintza's report marks a genuine turning point in how the Basque Country publicly reckons with crime. The numbers are now part of the record — available to inform, and equally available to inflame.

In mid-October, the Basque Country's police force made a quiet shift in how it talks about crime. The Ertzaintza, the regional law enforcement agency, began including in every press release the geographic origin of people arrested or under investigation. On Wednesday, they published their first full statistical report showing where detainees came from—and the numbers have set off a political firestorm across the region.

Between January and September of this year, police recorded 80,111 crimes in Euskadi, a rate of roughly 36 offenses per thousand residents. Those crimes led to 5,230 arrests and 23,528 people under investigation. When broken down by origin, the picture was stark: 35 percent of those arrested were Spanish nationals—either Basque or from other regions of Spain. The remaining 64 percent were foreign nationals. Among those being investigated, the split was closer: 57 percent Spanish, 43 percent from abroad.

The Ertzaintza's leadership framed the policy change as an exercise in transparency. Bingen Zupiria, the security chief and a member of the PNV, the Basque Nationalist Party, said the move was meant to prevent distorted or manipulated conversations about immigration and crime. "It's better to put the data out there clearly and without stigmatizing anyone," he said. But the timing and the numbers tell a more complicated story. Crime has climbed the list of what worries Basque voters most, and the PNV—which has not been having an easy time electorally—is acutely aware that other parties could use security fears to peel away support.

The decision to release origin-based crime data did not come out of nowhere. The PP and Vox have spent months demanding exactly this information, pressing the regional government to break down arrests by where people came from. The Basque government, a coalition between the PNV and the Socialist Party, has now given them what they asked for. What is less clear is whether the move will calm the debate or intensify it.

The PNV's own messaging on crime has shifted noticeably in recent months. Jon Insausti, the newly elected mayor of San Sebastián, said a few weeks ago that people who commit crimes repeatedly "should face prison or expulsion." His counterpart in Bilbao, Juan Mari Aburto, has at times connected the use of knives and blades in certain crimes to "cultures where the value of life is different." Zupiria himself has linked knife and razor attacks to "foreign nationals without roots in the community." These statements suggest the party is trying to thread a needle: acknowledge public concern about crime without appearing to scapegoat immigrants, while also trying to reclaim ground on a security issue that other parties are using to gain traction.

The release of these statistics marks a turning point in how the Basque Country discusses one of its most pressing problems. Whether the data will inform a more nuanced conversation or simply provide ammunition for political actors to weaponize crime numbers in the months ahead remains to be seen. What is certain is that security has become a front-and-center issue in regional politics, and the numbers are now part of the public record.

It's better to put the data out there clearly and without stigmatizing anyone
— Bingen Zupiria, Basque security chief
People who commit crimes repeatedly should face prison or expulsion
— Jon Insausti, mayor of San Sebastián
La Conversación del Hearth Otra perspectiva de la historia
Inventor

Why did the Ertzaintza decide to start publishing this data now, in October, rather than earlier?

Model

The pressure had been building. The PP and Vox were demanding it explicitly. But there's also the electoral calendar—crime is rising as a concern among voters, and the PNV felt it needed to get ahead of the narrative rather than have other parties use the absence of data against them.

Inventor

But if the data shows 64 percent of detainees are foreign nationals, doesn't that confirm what those parties have been saying?

Model

Not necessarily. The data is more complex than a headline. You have to account for population size, types of crimes, enforcement patterns. But yes, the raw numbers will be used as ammunition, which is probably why the security chief emphasized transparency and avoiding stigma.

Inventor

The PNV's own leaders have started talking about expulsion and linking weapons to culture. Doesn't that contradict the transparency argument?

Model

It does. That's the tension. They want to appear tough on crime to voters, but they also don't want to be seen as scapegoating immigrants. The data release is supposed to be neutral, but the politicians are already interpreting it in ways that serve their interests.

Inventor

What happens next? Does this settle the debate?

Model

Almost certainly not. This is an election year essentially. The data will be cited by everyone—those who want stricter immigration policy, those who want more resources for integration, those who want to blame the government for not preventing crime. The numbers are real, but the meaning people draw from them will depend entirely on their politics.

Inventor

Is there a risk that releasing this data actually makes things worse for immigrants in the Basque Country?

Model

That's the real concern underneath all of this. Transparency is good in principle, but context matters enormously. If the data is released without explanation of what drives those numbers—poverty, opportunity, enforcement bias—it can fuel discrimination. The security chief said they want to avoid stigma, but once the numbers are public, they're out of anyone's control.

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