The
hierarchy of sources in international law is:
- Custom:
it binds all States and includes the general principles of law.
-Treaty:
it binds only the contracting States.
- Sources
provided by agreements: like the acts of an international
organization.
The
customary norms are particularly
flexible, and thus can be derogated through an agreement. Notwithstanding,
a group of norms of general customary international law exist that cannot be
derogated, being perceived as mandatory: the cogent norms (i.e. norms of jus cogens). Art 53 of the Vienna
Convention on the Law of Treaties (VCLT) of 1969 states that it is void any
treaty that, when concluded, is in contrast with an imperative norm of general
international law. By “norm of general international law” is meant a norm
accepted and recognized by the international community as wholly and automatically
binding, that can be derogated only by another similar general international
law. According to Art 66 of the VCLT, when a controversy over an agreement
contrary to jus cogens occur, the
contracting States of the VCLT can unilaterally demand to the International
Court of Justice (ICJ) to solve the matter. The VCLT does not expressly suggest
which international norms belong to jus
cogens, solely affirming that an imperative cogent norm is that that cannot be derogated. Indeed, it is
true that a cogent norm is such if the majority of the countries of the international
community consider it so and if it includes the typical requirements of custom:
the diutirnitas and the opinion juris sive necessitatis. We can uphold
that norms of jus cogens include:
a)
The fundamental human rights;
b) the principle of national self-determination;
c) the prohibition of the use of force, except for the case of self-defense;
d)
the right for development;
e) the respect of the obligations arising from the UN
Charter and of the UN binding decisions (cf. Art 103 UN Charter);
f) the
decisions taken to contrast international terrorism.
Allegory of the Russo-Persian Treaty of Friendship (1921) |
An example of treaty contrary to the principle that
forbids the use of force except for self-defense is the Treaty of Guarantee for
Cyprus (1960) that authorizes Greece, Great Britain and Turkey (contracting
parts of the treaty) to take common or singular actions in cases of
modifications in Cyprus’ political status, as regulated by the treaty itself. Another
example is the 1921 Treaty of Friendship between the Soviet Union and Iran,
which under Art 6 states the Soviet faculty to intervene militarily in Iran if
this State would be invaded or the USSR somehow threatened, without prior
consent of Iran.
As for the humanitarian interventions, a part of doctrine
argues that the prohibition of the use of force has a general cogent nature but
it would not concern the so-called humanitarian interventions, by so meaning military
measures aimed at saving human lives of endangered citizens either of their own
country or of foreign ones.
Examples of treaties in contrast with the principle of
self-determination are the Camp David Agreements (1978) and the Peace Treaty
between Egypt and Israel (1979), that did not consider nor contemplate the
national fates of the Arab inhabitants of the West Bank and the Gaza Strip
under Israeli domination.
The European Court of Human Rights in Strasbourg |
In some cases, according to a part of the doctrine
that does not consider the jus cogens
as inviolable but rather inderogable and prevailing ordinary customary laws, the
international jurisdictions applied old norms on the immunities of States in
order to derogate from jus cogens. See
for instance the ICJ sentence on an 11th of April 2000 warrant (14/02/2002)
in the case Democratic Republic of the Congo vs Belgium, as well as the ICJ
sentence on the jurisdictional immunities of foreign States (03/02/2012) in the
case Germany vs Italy, and the European Court of Human Rights (ECHR) sentence
(21/11/2001) in the case Al-Adsani vs Great Britain.
Furthermore, the binding decisions of the UN Security
Council have been considered sometimes superior to the protection of human
rights, especially regarding the seizure of assets belonging to alleged
terrorists, often contrasting with the jurisprudence of the ECHR.
Finally, the jus
cogens seems to have a deterrent effect: this is what the International
Criminal Tribunal for the former Yugoslavia (ICTY) stated in the sentence on
the case Furundžija (10/12/1998), sustaining that imperative norms (in the
present case norms against torture) suggest to States and individuals that the prohibition
they compel is inspired by absolute values that nobody can deviate from.
References:
A. Cassese, International Law, USA, Oxford University Press, 2001.
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