{
  "record": {
    "id": "acd4b53a-4f9e-4670-a224-8a7631c84738",
    "code": "PAI-ACD4B53A",
    "force": "Home Office",
    "country": "United Kingdom",
    "country_code": "uk",
    "is_country": true,
    "region": "UK-wide",
    "technology": "CSAM Detection and Classification (Vigil AI / CAID)",
    "technology_slug": "csam-detection-classification",
    "vendor": "Roke (Vigil AI classifier); Qumodo and Cyan Forensics also credited",
    "vendor_slug": "",
    "programme": "Child Abuse Image Database (CAID)",
    "status": "operational",
    "stage": "in-use",
    "evidence": "official",
    "evidence_is_claim": false,
    "since": "2014",
    "legal_basis": "Home Office programme with a published privacy notice; no dedicated statute identified",
    "oversight": "None named externally; Home Office CAID team",
    "notes": "CAID is the UK's national hash-matching database of child sexual abuse imagery, live since Dec 2014 and used by all territorial forces, Police Scotland, PSNI and the NCA. The AI layer -- the Vigil AI CAID Classifier, built with Roke -- trains on the CAID corpus to detect previously unseen CSAM, including deepfake CSAM, and grade severity against government categories, going beyond hash-matching's ability to only catch already-known material. Roke describes it as (in the supplier's own words) the first operationally viable classifier able to both detect and grade. Home Office had invested £18.2m by 2019 with a further £1.76m on AI/fast-forensic tools. A May 2024 Home Office market notice signalled a possible move to public cloud hosting, reversing a 2020 legal opinion against cloud hosting for this data; outcome not established. This is the only documented operational police deployment of AI against synthetic/deepfake media found in this research pass.\n\nRecorded for the Home Office, which runs CAID. All UK territorial forces, Police Scotland, the PSNI and the NCA use it.",
    "source": "GOV.UK CAID privacy notice; Roke white paper; Computer Weekly",
    "source_url": "https://www.gov.uk/government/publications/child-abuse-image-database/child-abuse-image-database-caid-privacy-notice--2",
    "last_checked": "2026-10-31",
    "record_url": "https://www.policeainews.com/tracker/record/acd4b53a-4f9e-4670-a224-8a7631c84738"
  },
  "licence": "https://www.policeainews.com/data#licence"
}