Law I / The International Legal Order
Practice question · Select all that apply

Why can a rule of customary international law bind a state that has never signed anything?

Hints
  1. Three explain how obligation arises without a signature; one denies that it can.
  2. Think about what the persistent objector rule implies about states that say nothing.
Show the answer
  • B. Custom is formed by a general practice of states accepted as law, not by signature
  • C. Consent in international law may be tacit, expressed through conduct over time
  • D. A state that objects consistently and from the outset is not bound, which shows that silence counts as acceptance
Why

The persistent objector rule is the sharpest evidence. If silence did not count as acceptance, there would be no need for a doctrine protecting the state that speaks up, and the fact that the objection must be consistent and from the outset shows the system treating a failure to object as a form of consent.

Read the lesson: The International Legal Order →

Practise The International Legal Order

The app has 5 more questions on this lesson, and keeps your place in the course. Law I is free to start.

More questions on The International Legal Order