Geospatial methods
Boundary provenance is part of the evidence.
Map layers should be reproducible, dated and clearly labelled.
Required metadata
- Source institution
- Boundary vintage / release date
- Administrative level
- Coordinate reference system
- Licensing or usage conditions
- Scenario assumptions, where applicable
Scenario geometry
Proposed boundaries must carry an explicit analytical status and should never be styled or labelled in a way that suggests they are already legally established.