Reviewed case brief
Asylum Case (Colombia v Peru)
ICJ Reports 1950, p 266
## Summary
- Court
- International Court of Justice
- Year
- 1950
- Subjects
- Public International Law
- Reviewed
- 2026-06-18
Rule established
Regional custom requires constant and uniform usage accepted as law by the states concerned; the burden of proof lies on the state invoking the custom.
Facts
Issues
Held
Ratio decidendi
How to use it in an exam
Editorial source
ICJ Reports 1950, p 266; verified via ICJ database
Educational summary only. Read the reported judgment or an authorised law report before relying on the case professionally.