Index of pages

All thirty pages with a line on what each one covers, grouped by section. The index is maintained by hand and kept aligned with sitemap.xml.

Reviewed 12 June 2026 · sources dated in text · general information only

Reference

HomeWhat the reference covers, the ten fields, the working sequence and the independence statement.
Method guidesIndex of the four long guides, how they are structured and why the archive stays small.
Fields of practiceIndex of the ten field pages, the three groups they fall into and where they connect.
TerminologyThirty-seven defined terms, the expressions to avoid, and words that shift meaning between law and statistics.
Common questionsThirty-four grouped answers on scope, method, reuse, legality, personal data and corrections.

Method guides

From open data to storyA dataset from question to publication: source assessment, cleaning, analysis, human checks, method note.
Reading statisticsInterrogating a published figure: definitions, denominators, uncertainty, revisions, and the margin-of-error calculator.
The verification chainSix ordered links for material found in public: provenance, location, time, corroboration, documentation, stated limit.
Documenting an investigationThe registers that make a finding defensible: sources, requests, decisions, review notes, retention.

Fields of practice

Open data portalsReading dataset metadata, licences and update cycles, and treating coverage gaps as findings.
Cleaning dataRestructuring human-formatted files, missing values, near-duplicates, joins and a change log.
Statistical literacyAverages, denominators, percentage points, sampling uncertainty and the limits of correlation.
VisualisationMatching chart form to the question, axis and colour honesty, map classification, accessibility.
OSINT techniquesProvenance before content, independent corroboration, archiving, data protection and the boundary of lawful research.
GeolocationLocating a scene from fixed features and dating it with shadows, weather records and seasonal markers.
Access to recordsFraming a request that can be answered, exemptions and fees, reading a refusal, keeping a log.
Company registriesIdentifying the right entity, reading filings and accounts, ownership against control.
ReproducibilityRaw, processed and output layers, scripted steps, decision records and independent re-derivation.
Ethics and privacyProportionality, minimisation, security of research files, harm assessment and retention.

Editorial

ProtocolScoping, source hierarchy, how claims are checked, review cycle, corrections and what the procedure cannot deliver.
Publishing standardsAccuracy as procedure, sourcing, record against inference, use of automated tools, correction practice.
The projectWhy the project exists, what it is not, jurisdiction, editorial roles, funding and where coverage stops.
ContactOperator details, the four enquiry routes, the enquiry form, error-report checklist and correction workflow.
Index of pagesThis page: all thirty entries grouped, with reading routes through the archive.

Legal and transparency

Data protectionWhat is and is not collected, server logs, consent signals, form data, recipients, rights and the authority.
Cookies and local storageEvery storage key with purpose and duration, the Consent Mode signals, and how to clear a choice.
Terms of usePermitted use and citation, third-party references, availability, liability limits and applicable law.
AccessibilityMeasures taken, structure and contrast, interactive elements, known limitations and how to report an obstacle.
LimitationsEvery limit in one place: no accreditation, no advice, no outcomes, and the boundary on technique.

Error page

Page not foundError page: why an address may have failed and the routes back into the archive.

The pages are static and linked with relative paths. If a link fails, a report is useful and can be sent through the details on the contact page, naming the page you started from and the one you were trying to reach.

The index includes the transparency documents, which describe the editorial protocol, publishing standards, the declared limits of the content and the handling of personal data. It also lists the error page, which is reachable only by following a broken or outdated address and is deliberately excluded from the machine-readable sitemap: an error page should never be offered to a search engine for indexing.

Three reading routes run through this list. Someone starting from a dataset should read the field pages on portals and cleaning, then the guide on turning open data into a story. Someone checking a published figure should start with statistical literacy and the guide on reading statistics. Someone working with material found in public should read the fields on open-source technique and geolocation, then the verification chain, and the ethics and data-protection page before anything is published.

Where a page is withdrawn because it can no longer be maintained accurately, the withdrawal is recorded here rather than left as a silent gap, so this list is also the record of what the site once contained.