AI Is Writing Police Evidence—And The Original Is Vanishing

InnovationScienceAI Is Writing Police Evidence—And The Original Is VanishingByLars Daniel,Contributor.Forbes contributors publish independent expert analyses and insights. Digital forensics, AI, deepfakes, and what becomes proof in court.Follow AuthorJun 15, 2026, 11:49am EDTSummaryAn English police officer faces a criminal investigation for allegedly using AI to create evidential material, a UK first that Derbyshire Constabulary calls perverting the course of justice. The case exposes a simple problem. An AI-written statement is a derivative, a copy of the original evidence. Once the source recording is gone, AI error and deliberate fabrication look identical, and no one can prove what was said. Evidence also needs a human who can be cross-examined, something AI cannot do. Some police tools make it worse by deleting the initial AI draft and erasing the audit trail. Misuse by a few officers could sink public trust in every AI-assisted record. Keep the original source, and keep a human accountable to it.Show More The actions of a few can have wide reaching implications when it comes to public trust in AI. gettyAn English police force has taken an officer off frontline duties and opened a criminal investigation into the alleged use of AI to create evidential material in a number of cases. Derbyshire Constabulary calls the allegation perverting the course of justice. No arrests have been made. The Crown Prosecution Service, which decides what gets charged in England and Wales, says it is working with defense teams and the courts on the cases that might be affected. It is the first known case of its kind in UK criminal justice.The case will turn on what one officer intended. The problem it exposes is bigger than one officer, but it has a simple fix.The Original Recording Is The Real EvidenceThe original transcription source, the body-worn camera audio, the recorded interview, the raw notes, is the evidence. When a model turns that source into a clean written statement,...