---
uai: "1.0"
type: topic-memory
status: active
project: iarpg.com
release: "IARPG-OPS-2"
version: "2.0.14-wip"
review_state: current-until-superseded
---

# Evidence Model

## Purpose

Keep evidence types, provenance, uncertainty, and decisions separate.

## Current doctrine

- Observation, report, document, sensor event, interpretation, hypothesis, assessment, decision, contradiction, corroboration, and custody event are distinct node types.
- Evidence packets record origin, UTC time, reliability, confidence, provenance, jurisdiction, review status, and reason code.
- Severity and evidentiary certainty remain separate axes.

## Shared Constraints

- Apply [repository constraints](constraints.uai#non-negotiable-constraints).

## Relevant standards

- https://iarpg.com/standard/observation-report-interpretation-and-hypothesis
- https://iarpg.com/standard/provenance-confidence-and-corroboration
- https://iarpg.com/standard/evidence-custody
- https://iarpg.com/standard/contradiction-handling

## Relevant mission examples

- https://iarpg.com/mission/port-access-anomaly-investigation
- https://iarpg.com/mission/internal-leak-counterintelligence-review

## Deep report links

- [Justice System and Warrant Escalation for Rogue Intelligence](../docs/long-term-memory/reports/justice-system-and-warrant-escalation-for-rogue-intelligence.md#strategic-fit-with-rogue-intelligence)
- [Justice System and Warrant Escalation for Rogue Intelligence](../docs/long-term-memory/reports/justice-system-and-warrant-escalation-for-rogue-intelligence.md#recommended-warrant-architecture)

## Related UAI records

- [evidence-lab.uai](evidence-lab.uai)
- [source-handling.uai](source-handling.uai)
- [counterintelligence.uai](counterintelligence.uai)