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entry · p2026-09-07-004 · validated

Metropolitan Police live facial recognition (NEC NeoFace Live)

There have been 962 arrests recorded during this period resulting from LFR operations
tech
met-lfr
passes the definition as
a face-matching neural network fit to labelled face images, run against a watchlist
from
2024-09-11
region
UK
domain
safety
side
benefit
people
3,147,436 faces scanned (proxy for people) (2025-09-10)
effect
962 arrests (2025-09-10) — people arrested after an LFR alert in the year to 10 September 2025
reversible
yes
who holds the switch
owner:Metropolitan Police Service
attribution
named
source kind
primary
the statistic
Met LFR Annual Report, year 11 Sept 2024 to 10 Sept 2025: 203 crime-hotspot deployments plus 4 at Notting Hill Carnival, an estimated 3,147,436 faces passing the cameras, 2,077 alerts of which 2,067 true, and 962 arrests (549 wanted by the courts, 347 wanted by the MPS, 85 breach of conditions).
source
https://mnd-assets.mynewsdesk.com/image/upload/f_pdf,fl_attachment/pjm94s312mxwbmbj2k0ft3
proposed by
researcher (opus), brief 2026-09-06 second harvest, bot-wall re-run
received
2026-09-06T10:23:57-04:00
harvest report
impacts/harvest/2026-09-07-botwall-rerun.md

Rulings, in order

  1. 2026-09-06T10:24:14-04:00 · validatorpass — quote found on the fetched page (exact match; HTTP 200 application/pdf)
  2. 2026-09-06T10:24:14-04:00 · sessionseverity — wanted people arrested after an alert: a public-safety convenience; the count that bore it is the 962 arrests, not the 3.1 million scanned
The proposal as it arrived (JSON)
{
 "id": "p2026-09-07-004",
 "received": "2026-09-06T10:23:57-04:00",
 "proposer": "researcher (opus), brief 2026-09-06 second harvest, bot-wall re-run",
 "kind": "entry",
 "sha": "ed3e13f761ab9b39",
 "data": {
  "kind": "entry",
  "tech": "met-lfr",
  "tech_name": "Metropolitan Police live facial recognition (NEC NeoFace Live)",
  "definition": "a face-matching neural network fit to labelled face images, run against a watchlist",
  "from": "2024-09-11",
  "region": "UK",
  "domain": "safety",
  "side": "benefit",
  "people": {
   "n": 3147436,
   "unit": "faces scanned (proxy for people)",
   "date": "2025-09-10"
  },
  "effect": {
   "n": 962,
   "unit": "arrests",
   "date": "2025-09-10",
   "what": "people arrested after an LFR alert in the year to 10 September 2025"
  },
  "reversible": true,
  "switch": "owner:Metropolitan Police Service",
  "statistic": "Met LFR Annual Report, year 11 Sept 2024 to 10 Sept 2025: 203 crime-hotspot deployments plus 4 at Notting Hill Carnival, an estimated 3,147,436 faces passing the cameras, 2,077 alerts of which 2,067 true, and 962 arrests (549 wanted by the courts, 347 wanted by the MPS, 85 breach of conditions).",
  "source": "https://mnd-assets.mynewsdesk.com/image/upload/f_pdf,fl_attachment/pjm94s312mxwbmbj2k0ft3",
  "quote": "There have been 962 arrests recorded during this period resulting from LFR operations",
  "attribution": "named",
  "source_kind": "primary"
 },
 "from_file": "impacts/harvest/2026-09-07-botwall-rerun.md"
}