International Custom

This topic has no further subtopics. Explore its practice questions below.

1. What two elements are required to identify customary international law?
2. What does opinio juris refer to in the customary-law inquiry?
3. Under the ILC identification framework, what quality must a practice have to be general?
4. States regularly send ceremonial gifts but consistently explain that they do so solely as courtesy and recognize no leg…
5. A treaty contains a rule, but a lawyer provides no evidence that it codifies, crystallizes or generates a general pract…
6. A claimed rule has developed over a short period. The evidence nevertheless establishes sufficiently widespread, repres…
7. An international organization adopts a resolution recommending a new policy. The record establishes no corresponding ge…
8. Explain the two-element method for identifying international custom. Why is a widely repeated practice not sufficient i…
9. Describe how a treaty rule may relate to customary international law under the ILC framework. Does finding the rule in …
10. Under the ILC persistent-objector formulation, what conditions matter when a State seeks non-opposability of an emergin…
11. Under ILC Conclusion 5, can legislative conduct be State practice?
12. Under Conclusion 6, is practice limited to physical acts?