Hostname: page-component-586b7cd67f-t7czq Total loading time: 0 Render date: 2024-11-27T01:28:25.376Z Has data issue: false hasContentIssue false

Brian D. Lepard, Customary International Law: A New Theory with Practical Applications, Cambridge, Cambridge University Press, 2010, xx + 419pp., ISBN-9780521191364, £70.00 (hb), ISBN-9780521138727, £38.00 (pb).

Review products

Brian D. Lepard, Customary International Law: A New Theory with Practical Applications, Cambridge, Cambridge University Press, 2010, xx + 419pp., ISBN-9780521191364, £70.00 (hb), ISBN-9780521138727, £38.00 (pb).

Published online by Cambridge University Press:  06 May 2011

Abstract

Image of the first page of this content. For PDF version, please use the ‘Save PDF’ preceeding this image.'
Type
BOOK REVIEWS
Copyright
Copyright © Foundation of the Leiden Journal of International Law 2011

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 J. Kammerhofer, ‘Uncertainty in the Formal Sources of International Law: Customary International Law and Some of Its Problems’, (2004) 15 EJIL 523, at 551.

2 M. Koskenniemi, From Apology to Utopia: The Structure of International Legal Argument (2005), 409.

3 In his famous article on instant custom, Bin Cheng suggested that ‘international customary law has in reality only one constitutive element, the opinio juris’; see Cheng, B., ‘United Nations Resolutions on Outer Space: “Instant” International Customary Law?’, (1965) 5 Indian Journal of International Law 23, at 36Google Scholar. Maurice Mendelson, by contrast, sees ‘no particular reason to insist on proof of the presence of opinio juris’ in clear-cut cases; see M. H. Mendelson, ‘The Formation of Customary International Law’, (1998) 272 RdC 155, at 292.

4 F. L. Kirgis, ‘Custom on a Sliding Scale’, (1987) 81 AJIL 146; for a more refined, but similar, approach, see A. E. Roberts, ‘Traditional and Modern Approaches to Customary International Law: A Reconciliation’, (2001) 95 AJIL 757.