{
  "url": "https://openlegislation.uk/road-traffic-offenders-prescribed-devices-order-northern-ireland-2012/article-3",
  "json_url": "https://openlegislation.uk/road-traffic-offenders-prescribed-devices-order-northern-ireland-2012/article-3.json",
  "legislation": "nisr/2012/77",
  "legislation_title": "The Road Traffic Offenders (Prescribed Devices) Order (Northern Ireland) 2012",
  "legislation_url": "https://openlegislation.uk/road-traffic-offenders-prescribed-devices-order-northern-ireland-2012",
  "path": "article/3",
  "kind": "article",
  "number": "3",
  "heading": "Prescribed device",
  "text": "The following device is prescribed for the purposes of Article 23 of the Road Traffic Offenders (Northern Ireland) Order 1996, that is to say, a manually activated device designed or adapted for recording the measurement of the speed of a motor vehicle (“vehicle A”) from another motor vehicle (“vehicle B”) by—\n(a) measuring the time taken by vehicle A to pass two positions on the road either directly or by reference to the time taken by vehicle B to pass the same two positions on the road;\n(b) recording the distance between the two positions by counting the odometer pulses from vehicle B as it travels between the two positions; and\n(c) calculating the average speed of vehicle A over the distance between the two positions by reference to the time recording in paragraph (a) and the distance either calculated in accordance with paragraph (b) or measured manually.",
  "extent": null,
  "status": null,
  "version": "current",
  "annotations": [],
  "outstanding_effects": [],
  "provenance": {
    "source": "legislation.gov.uk",
    "source_url": "https://www.legislation.gov.uk/nisr/2012/77/article/3",
    "retrieved_at": "2026-10-29T01:17:20.879968+00:00"
  },
  "licence": "Open Government Licence v3.0",
  "licence_url": "https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/",
  "attribution": "Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives."
}