Reviewed case brief
R v Keyn (The Franconia)
(1876) 2 Ex D 63
## Summary
- Court
- Court for Crown Cases Reserved
- Year
- 1876
- Subjects
- Public International Law
- Reviewed
- 2026-06-18
Rule established
International law does not automatically form part of English domestic law; customary international law requires adoption or incorporation by Parliament or judicial decision before it is enforceable domestically.
Facts
Issues
Held
Ratio decidendi
How to use it in an exam
Editorial source
(1876) 2 Ex D 63; verified via English Reports
Educational summary only. Read the reported judgment or an authorised law report before relying on the case professionally.