{
  "release": "2026-10-16",
  "version": "1.1",
  "common": {
    "responsibility": "Published by Civil Liberties Action. Compilation, source retrieval and drafting used AI assistance. Automated integrity checks and additional source checks are described below; no independent external or specialist review is claimed.",
    "dates": "Release date is the date of this publication. reviewed_at records a stated evidence check, not proof that every fact remains current. Publication date, event date, reference period, document version and source-check date are separate fields.",
    "corrections": "Send the record identifier, proposed correction and supporting primary source to policy@civillibertiesaction.org.uk. Corrections are assessed against the same evidence rules for all subjects. Responses, reversals and corrected outcomes receive the same factual prominence as initial decisions. Substantive changes require a dated new release and a change-log entry; the old files remain available.",
    "selection_history": "The first pilots were assembled through purposive discovery and source checking. Their complete original search-engine query/results history was not retained, so the first selection cannot be replayed exactly. This limitation is not repaired by writing a retrospective systematic-search claim. Published records and transformations can be reproduced from the supplied files; prospective expansion protocols below define the next collection work.",
    "funding": "CLA's existing funding and interests statement applies. Its founder has disclosed Labour Party membership. The same inclusion, identity and correction rules apply regardless of political affiliation."
  },
  "unit": "One sourced estimate, vintage or contextual method record. Components, variants, repeated statements and related source families are explicitly related, not counted as independent estimates.",
  "selection": "The expanded register covers the report's principal recent Home Office valuation, ONS vintage comparison and October trend update alongside the original seven records. All 29 report references are mapped to a source role; some historical/subject-specific models remain report-only rather than separate structured records.",
  "coding": [
    "Keep geography, substances, measured period, publication/update date, units, price basis and estimate family. Retail spending, equivalent consumption value, national accounts, social costs and GDP contributions are not interchangeable.",
    "The September ONS vintage is used for the report comparison. June is retained as historical. Revision of a past-year number does not establish a new change in consumption.",
    "The Home Office combined figure contains the six-drug subtotal; do not add it again. Alternative cannabis models substitute for each other. Later consumption trend evidence does not supply a new national monetary total.",
    "CLA's UK scenarios are separately labelled calculations. They assume equal spending per resident outside measured geographies and use one population vintage. The arithmetic stress tests are not confidence intervals, forecasts, minima or maxima."
  ],
  "future_protocol": "Search official analytical releases, national accounts, original research and direct testimony. Follow cited original estimates and log repeated-source relationships. Add new structured records only after checking definition, coverage and vintage; preserve superseded observations and identify links to the report.",
  "limits": "No reconciled, consistently measured current UK total is established. The report is a structured evidence review, not a formally registered systematic review.",
  "data_dictionary": [
    [
      "id / record_id",
      "Stable record identifier; retained across releases where the unit remains the same."
    ],
    [
      "release / version",
      "Publication date and release version, separate from the date of underlying evidence."
    ],
    [
      "record_url / citation",
      "Fixed-version record link and suggested citation."
    ],
    [
      "category / geography / period",
      "Display group, actual coverage and source reference period; not a harmonised statistical panel."
    ],
    [
      "reviewed_at",
      "Date of the recorded source check, subject to its stated scope."
    ],
    [
      "details / sources",
      "Labelled observations and original URLs, titles and locators."
    ],
    [
      "limitations",
      "Record-specific boundary on interpretation."
    ],
    [
      "raw",
      "Underlying typed source/coding fields; null remains missing, not zero."
    ],
    [
      "value / unit / price_basis",
      "Reported number and measure, with no invented common price basis."
    ],
    [
      "estimate_family / parent_estimate_id",
      "Dependence, repetition, components and related estimates."
    ],
    [
      "relationship / superseded_by",
      "Source relationship or later vintage; old observations remain traceable."
    ],
    [
      "variants / components",
      "Alternatives substitute; components are already included where stated."
    ]
  ]
}