Evidence Grades
Definitions for A1, A2, B, and C evidence grades.
Methods pages explain how evidence is graded, how coding rules work, and how the public corpus is selected.
Contents
Overview
The methods pages define evidence grades, coding rules, source-selection rules, and the explicit limits that govern how the public graph should be read.
Methods
Coding Rules
Taxonomy definitions, boundary rules, and coding conventions.
Source Selection
How incident and governance rows enter the public corpus.
Why it matters
The methods pages keep the public site answerable without blurring the line between documented rows, explanatory interpretation, and unsupported inference.
Access publication
Safety note
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