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Watching the Watchers: Is Live Facial Recognition Fit for Purpose?

  • Writer: Paul Francis
    Paul Francis
  • May 8
  • 4 min read

In an age of rapid technological advancement, surveillance is no longer a passive act. Live Facial Recognition (LFR) technology has moved from science fiction into the heart of modern policing and commercial security systems. Able to scan faces in real time and match them to watchlists within seconds, it promises efficiency, safety, and even crime prevention. But with these promises come serious questions about legality, accuracy, ethics, and trust.


Futuristic officer with glowing green eyes and circuit-patterned uniform in a neon-lit corridor, exuding a cool, technological vibe.

As this technology continues to spread across public streets and private retail spaces alike, we must ask: is LFR ready for widespread use, or is it running ahead of the safeguards designed to protect our rights?


What is Live Facial Recognition?

Live Facial Recognition (LFR) is a biometric surveillance tool that uses real-time video feeds to detect and identify faces. Unlike static facial recognition, which analyses images after an event has occurred, LFR operates live. Cameras scan crowds, extract facial features, and compare them to a database of preloaded images. If the system detects a potential match, it alerts a human operator to intervene or investigate.


LFR is being trialled and used by several police forces in the UK, including the Metropolitan Police and South Wales Police. Retailers, stadiums, and event organisers are also deploying the technology in an attempt to identify shoplifters or detect banned individuals before trouble starts.


A woman's face on a monitor with blue facial recognition lines, surrounded by software interface text, creates a tech-focused atmosphere.

How Does It Work? A Closer Look

LFR involves several distinct technical steps. At its core, it is powered by artificial intelligence and machine learning algorithms trained on vast datasets of facial images. The process typically unfolds as follows:


Face Detection

First, the system identifies a face within a video frame. This step uses computer vision models to detect facial structures such as the eyes, nose, and jawline. This is not identification yet; it is simply recognising that a face is present.


Alignment and Normalisation

Once detected, the system adjusts the face to account for differences in head tilt, lighting, or distance. This is known as normalisation. The aim is to ensure that all faces are processed in a similar format so that they can be compared reliably.


Feature Extraction

The system then uses a deep learning model, often a convolutional neural network, to extract features from the face. These are translated into a biometric template, a mathematical vector that represents the unique aspects of that person’s face.


Matching

This template is then compared against a watchlist. The system calculates a similarity score between the live face and each entry in the database. If the score passes a predefined threshold, the system flags it as a match. A human operator is usually involved at this stage to confirm or reject the result.

This entire process happens in seconds, enabling real-time surveillance across public or private spaces.


The Case For LFR

Proponents argue that LFR is a valuable tool for modern policing. It can identify wanted criminals, locate missing persons, and even prevent terrorist acts before they happen. In retail settings, it promises to reduce shoplifting and protect staff from repeat offenders. Unlike traditional methods, it allows for rapid identification without the need for physical interaction or delays.

The technology also allows for more efficient use of resources. Officers can be directed to individuals flagged by the system, rather than relying solely on observation or tip-offs. In theory, this reduces the burden on police and enhances public safety.

The Case Against LFR

Despite its promise, LFR is far from perfect. One of the main concerns is accuracy. Studies have shown that LFR systems are more likely to produce false positives for people with darker skin tones and for women. These errors are not trivial. A mistaken identity can result in an innocent person being stopped, searched, or even arrested.


There is also the issue of bias in training data. If an algorithm has been trained primarily on certain demographics, it will perform less effectively on others. In real-world conditions, such as low lighting or crowd movement, these problems can become even more pronounced.


Beyond technical flaws, legal and ethical questions loom large. In the United Kingdom, there is currently no specific law governing the use of LFR. Its deployment relies on a complex mesh of data protection laws, human rights principles, and operational guidance. Critics argue that this legal uncertainty leaves too much room for misuse.


A 2020 Court of Appeal ruling found South Wales Police’s use of LFR to be unlawful, citing insufficient safeguards, inadequate impact assessments, and the risk of discriminatory practices. The ruling did not ban the technology outright but signalled that current uses are walking a legal tightrope.


Profile of a woman with glowing blue cybernetic lines on her face, set against a blurred background. Futuristic and serene mood.

Potential Misuse and the Chilling Effect

One of the most troubling aspects of LFR is its capacity for mass surveillance. By scanning every face in a crowd, it treats everyone as a potential suspect. This blanket approach has been described as disproportionate and invasive by privacy groups such as Big Brother Watch and Liberty.


There is also the risk of function creep. A system introduced to identify serious offenders could, over time, be expanded to monitor protests, track political activists, or even control access to public spaces based on social or behavioural metrics.


Furthermore, the use of LFR by private companies raises concerns about data ownership and accountability. Retailers may share watchlists across multiple sites or even with law enforcement, all without the consent or knowledge of the individuals being scanned. This could lead to people being unfairly banned, blacklisted, or targeted, based on secretive and unchallengeable criteria.


Is It Fit for Purpose?

At present, the evidence suggests that Live Facial Recognition technology is not ready for widespread deployment. While it offers considerable potential, its use is outpacing the development of ethical, legal, and technical safeguards. In its current state, LFR is more likely to erode public trust than to enhance security.


Without robust legislation, transparent oversight, and significant improvements in accuracy and fairness, LFR risks doing more harm than good. Surveillance should not come at the cost of civil liberties or human dignity. As with all powerful technologies, its benefits must be balanced against the risks, and right now, that balance appears off.



LFR is a powerful tool with a fragile foundation. Its strengths lie in speed and scale, but its weaknesses—bias, error, and lack of transparency—cast a long shadow. Until these flaws are addressed, caution must guide its use.


In the race to embrace smart surveillance, we must not forget the human rights and democratic values that underpin our society. Watching the watchers may be just as important as watching the streets.


Images provided by Leonardo AI

Live Forever? Oasis might do just that!

Live Forever? Oasis might do just that!

15 May 2025

Mollie Waiton

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Stop crying your heart out, Oasis is reuniting! The moment fans have been dreaming of for 15 years, Liam and Noel Gallagher have put their differences aside to put on a show, touring the UK. 


Talk Tonight? Clearly, they finally did!


Concert crowd with raised hands silhouetted against bright stage lights. The atmosphere is energetic and lively, with a smoky background.


Oasis's rise to fame started in 1991, in Manchester. Liam Gallagher was the singer, and Noel the guitarist and songwriter. Their album Definitely Maybe, released in 1994, became the fastest-selling debut in UK history at the time. This was then followed by (What's the Story) Morning Glory?, released in 1995, which included Wonderwall, Don’t Look Back in Anger, and Champagne Supernova, all now iconic songs. Alongside Blur, they became the face of Britpop. Oasis are unique because they symbolised 1990s working-class pride and British spirit through both their personalities and their music. They famously played to over 250,000 fans over two nights at Knebworth in 1996. Oasis eventually split in 2009 in Paris after Noel said that he "simply could not go on working with Liam." Both brothers moved on to solo careers, throwing jabs at each other in interviews and on social media.


Once this iconic duo split, Noel Gallagher formed Noel Gallagher’s High Flying Birds, which earned him successful solo albums. Liam Gallagher formed Beady Eye with other former Oasis bandmates and later released his own solo albums, As You Were and Why Me? Why Not. Liam often begged for Oasis to reunite, but Noel didn’t like the idea and said it was "not worth it." Both Gallagher brothers hinted at a reunion; for example, Liam aimed songs at Noel during live shows, and Noel hinted that "the door was never completely closed" in an interview in 2023.


When Oasis finally confirmed the reunion, the initial announcement included a world tour, starting with major UK cities. However, there are rumours that they could headline Glastonbury, Reading, and Leeds. Noel and Liam are both involved, but Bonehead and Guigsy’s return hasn’t been confirmed. They have also hinted at making one or two new tracks to perform on the tour, but Noel has said that they want to "celebrate the old songs first." The main focus will be on Definitely Maybe and (What's the Story) Morning Glory?. In their interviews, it is clear that there is still tension between the two, but they are putting their differences aside for the fans and, most likely, the money. So even though they say they’ve made peace, I say we shouldn’t put our lives in the hands of a rock ’n’ roll band just yet.


The Oasis reunion isn’t just another tour; it’s history, the revival of an era that shaped Britpop. Fans never thought they would see the day. However, I think we are all wondering: can the Gallagher brothers really stay civil? Maybe they will live forever… or at least long enough to play Wonderwall one more time.

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