# Structural Dual Use
**Domain:** Deep Time / Evidence / Institutional Affordances
**Doc Type:** Canonical Wiki Entry
**Maturity:** Developed
**Evidence / Concept Status:** Canonical analysis label
## Definition
**Structural Dual Use** is the demonstrated ability of an existing legal or administrative mechanism to perform a second governance function if applied to a new class of object.
## Why It Matters for Deep Time Continuity
It is stronger than thematic similarity but weaker than evidence that anyone intends the future use.
## Existing Architecture / Evidence
A notice-and-removal system has structural dual use for future entity suspension because it already identifies targets, executes restrictions, notifies affected parties, and sometimes restores state.
## Deep-Time Continuity Analysis
Structural Dual Use must be grounded in actual control surfaces.
## Evidentiary Boundary
It should never be written as proof of hidden motive.
## Related Ontology
[[wiki/Legal Dual Use|Legal Dual Use]] · [[wiki/Deep-Time Conversion Potential|Deep-Time Conversion Potential]] · [[wiki/Present Legal Effect|Present Legal Effect]] · [[wiki/Deep-Time Hypothesis|Deep-Time Hypothesis]]
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## Canonical Branch
[[wiki/Deep Time Continuity|Deep Time Continuity]]
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