Madrid Uses AI to Review Sol Protest Videos for Possible Crimes 2026

Madrid's city government is using artificial intelligence to review videos of the Sol protest frame by frame, searching for possible crimes committed by the activists camping in Puerta del Sol. The move, reported by El Mundo, has reignited a debate over surveillance, protest rights, and the role of AI in public spaces.

The encampment began after a demonstration on September 26 organized by the Sindicato de Inquilinas, a tenants' union that has spent years fighting evictions. The protest was called "Ni una Maricarmen más" (Not one more Maricarmen) in honor of Maricarmen, an 87-year-old woman evicted on September 23 from the Retiro apartment where she had lived since she was 17.

On October 7, María del Carmen Abascal died in Madrid's Gregorio Marañón Hospital. The union then announced it was withdrawing its official presence from Sol, but the encampment continues. The city council and the regional government consider it illegal under municipal ordinances, yet the central government's delegation has not ordered a clearance.

What the AI System Does

The video analysis system has been in operation since 2024 and allows authorities to track people and objects across hours of footage. According to sources cited by El Mundo, if a complaint is filed and the suspect is wearing, for example, a red shirt and dark pants, the system can search for those frames and follow the person's movements across the square.

Police sources stated in 2025 that facial recognition is only used after a complaint is filed and for a specific investigation. However, the mere existence of such capabilities raises questions about privacy and the potential for misuse.

The city council frames the review as a legitimate effort to identify criminal behavior, while supporters of the protest see it as ideological persecution. The disagreement highlights a broader tension between public safety and civil liberties.

Legal Framework for Protests in Spain

Under Spanish law, peaceful assembly is protected by the constitution. However, encampments that block public spaces for extended periods can be considered illegal under municipal ordinances. The key legal question is whether the AI review constitutes a proportionate measure to investigate specific crimes or an excessive surveillance tool that chills protest.

Spain's data protection law requires a legal basis for processing personal data, and the use of AI for surveillance must comply with the General Data Protection Regulation (GDPR). The city council would need to demonstrate that the processing is necessary and proportionate.

Legal experts note that any evidence gathered through AI analysis must be obtained lawfully to be admissible in court. If the system tracks individuals without proper authorization, it could undermine prosecutions.

Key Takeaways

• Madrid's city government is using AI to scan hours of video from Puerta del Sol for possible crimes by protesters.
• The encampment began after a September 26 demonstration against evictions, sparked by the eviction of an 87-year-old woman.
• The city and regional government deem the camp illegal, but the central government has not ordered a clearance.
• Police say facial recognition is only used after a complaint, but privacy concerns remain.
• The legal debate centers on proportionality, data protection, and the right to protest.

How the Technology Works

The AI system is designed to analyze video footage and identify patterns, such as specific clothing colors or objects. It can track a person across multiple cameras and over time, creating a detailed record of their movements.

This capability is not unique to Madrid; cities around the world are experimenting with similar technologies. However, the use of such tools in the context of political protests is particularly sensitive.

According to El Mundo, the system was introduced in 2024 and has been used in other investigations. The city council has not disclosed the exact scope of its use in the Sol case. Context on how this played out before sits in Madrid Uses AI to Review Sol Protest Videos for Possible Crimes. A companion piece, Basque Government Buys 510 Blackstone Homes for Permanent Rent, approaches the same subject from another angle.

What Happens Next

The city council's review could lead to criminal charges against some protesters, but it is unclear whether any specific crimes have been identified. The encampment remains in place, and the central government has not intervened. The background to this story is set out in Madrid's Puerta del Sol Camp: Almeida's Census Demand Ignites Debate. A related thread runs through Trending: latest articles.

The case is likely to be watched closely by civil liberties groups and legal scholars. It raises important questions about how AI should be used in public spaces and how to balance security with the right to protest. Earlier coverage in US Customs Seized 9kg of Spanish Sausage at Seattle Airport shows how the argument developed. A closer look at the same subject appears in Loidis Album Review: 111-Minute Epic Is a Teeming Universe of Detail.

For now, the activists continue to demand affordable housing and an end to evictions, while the city government insists it is simply enforcing the law. Anyone following the wider picture can start with Backrooms to The Monkey: Seven Best Films to Watch on TV This Week. The same theme surfaces in Rays vs Brewers: World Series 2026 First-Time Champion, which takes a different angle.