A Derbyshire Police officer has been removed from frontline duties and is facing a criminal investigation for allegedly using artificial intelligence to create evidential material in multiple cases. The officer is suspected of perverting the course of justice, though no arrests have been made. The case, which emerged in June 2026, has raised urgent questions about how AI tools are being used—and misused—within the criminal justice system.
The investigation was launched by Derbyshire Police, who confirmed they are working closely with the Crown Prosecution Service (CPS) to identify any potentially impacted cases. The CPS said it is "engaging with defence teams and the courts in appropriate cases." The officer has not been named, and the force has stated that the investigation is in its early stages, so no further details are available.
“Explains the Derbyshire police AI evidence case and its implications for UK policing.”
This incident comes in the same week as the launch of PoliceAI, a new national centre for artificial intelligence in policing. At its launch on Wednesday, PoliceAI interim director Alex Murray said: "Crime and technology are evolving rapidly. Policing must keep pace by adopting AI responsibly to catch criminals and keep people safe." The juxtaposition of these two events highlights the tension between the promise of AI as a crime-fighting tool and the risks of its misuse.
For UK readers, the implications are significant. Police forces across the country are exploring AI for tasks such as analysing CCTV footage, predicting crime hotspots, and triaging evidence. But this case shows that AI can also be used to fabricate evidence, potentially leading to miscarriages of justice. If an officer can generate fake material using AI, it undermines public trust in the integrity of police work and raises questions about how such actions could be detected and prevented.
Q: What is PoliceAI? PoliceAI is a new national centre for artificial intelligence in policing, launched in the same week as this investigation. Its interim director, Alex Murray, has emphasised the need for responsible adoption of AI to keep pace with evolving crime and technology.
Q: Could AI-generated evidence be used against me? In theory, yes, if it is introduced without proper safeguards. This case involves an officer accused of using AI to create evidential material, which is why the CPS is reviewing cases that may have been affected. The justice system will need to develop ways to verify the authenticity of digital evidence.
Q: What happens to the officer under investigation? The officer has been removed from frontline duties pending the outcome of the investigation. No arrests have been made. The allegation is perverting the course of justice, a serious criminal offence, but the investigation is in its early stages.
What happens next will depend on the investigation by Derbyshire Police and the CPS. They will need to determine the extent to which AI was used and which cases may have been affected. The launch of PoliceAI suggests that national guidance on police use of AI is being developed, but this scandal may accelerate calls for stricter regulation and oversight. For now, the officer remains under investigation, and no charges have been brought.