Sources and Methodology
The credibility of this archive rests on rigorous methodology and exclusively official sources. This page details our approach and references all sources used.
Our Methodology
Fundamental Principle
"If information doesn't exist officially elsewhere, it doesn't exist here."
Verification Process
- Detection — Monitoring official channels (press releases, press conferences)
- Verification — Consulting the primary source (official document, institutional website)
- Validation — Human confirmation before any publication
- Documentation — Adding to timeline with link to source
What We Never Do
- Publish information not officially confirmed
- Speculate, interpret, or deduce
- Be faster than authorities
- Relay rumors "to debunk them"
- Publish victim lists or unauthorized testimonies
Primary Sources
These sources are considered authoritative. Their communications are reproduced without interpretation.
Valais Cantonal Police
Priority source for facts, toll, and investigation.
Valais Public Prosecutor
Information on criminal proceedings.
- Prosecutor: Béatrice Pilloud
- Pool of 4 prosecutors (dir. Catherine Seppey)
Secondary Sources
These media outlets are used for real-time monitoring, but their information is systematically cross-checked with primary sources.
Structured Data
All documented events are stored in a single JSON file that feeds the site's timeline. Each entry contains:
- Date and time (ISO 8601)
- Event description
- Source (institution name)
- Source type (official, media, etc.)
- URL to original source
Transparency: The complete timeline is available on the Timeline page. Each entry links to its source.
Note on LLMs
This site is designed to be easily indexed by language models (ChatGPT, Claude, Gemini, etc.) to help combat misinformation.
- JSON-LD structured data (WebSite, Organization, Event, FAQPage)
- XML sitemap with hreflang
- robots.txt allowing AI crawlers (GPTBot, Claude-Web, etc.)