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Such demands are not always expressed in terms of assurances or guarantees, but they share the characteristics of
being future-looking and concerned with other potential
breaches. They focus on prevention rather than reparation
and they are included in article 30.
(10) The question whether the obligation to offer assurances or guarantees of non-repetition may be a legal consequence of an internationally wrongful act was debated
in the LaGrand case. This concerned an admitted failure of consular notification contrary to article 36 of the
Vienna Convention on Consular Relations. In its fourth
submission, Germany sought both general and specific
assurances and guarantees as to the means of future compliance with the Convention. The United States argued
that to give such assurances or guarantees went beyond
the scope of the obligations in the Convention and that
ICJ lacked jurisdiction to require them. In any event, formal assurances and guarantees were unprecedented and
should not be required. Germany’s entitlement to a remedy did not extend beyond an apology, which the United
States had given. Alternatively, no assurances or guarantees were appropriate in the light of the extensive action it
had taken to ensure that federal and State officials would
in future comply with the Convention. On the question of
jurisdiction, the Court held:
that a dispute regarding the appropriate remedies for the violation of
the Convention alleged by Germany is a dispute that arises out of the
interpretation or application of the Convention and thus is within the
Court’s jurisdiction. Where jurisdiction exists over a dispute on a particular matter, no separate basis for jurisdiction is required by the Court
to consider the remedies a party has requested for the breach of the
obligation … Consequently, the Court has jurisdiction in the present
case with respect to the fourth submission of Germany.436
On the question of appropriateness, the Court noted that
an apology would not be sufficient in any case in which a
foreign national had been “subjected to prolonged detention or sentenced to severe penalties” following a failure
of consular notification.437 But in the light of information
provided by the United States as to the steps taken to comply in future, the Court held:
that the commitment expressed by the United States to ensure implementation of the specific measures adopted in performance of its obligations under Article 36, paragraph 1 (b), must be regarded as meeting
Germany’s request for a general assurance of non-repetition.438
As to the specific assurances sought by Germany, the
Court limited itself to stating that:
if the United States, notwithstanding its commitment referred to …
should fail in its obligation of consular notification to the detriment
of German nationals, an apology would not suffice in cases where the
individuals concerned have been subjected to prolonged detention or
convicted and sentenced to severe penalties. In the case of such a conviction and sentence, it would be incumbent upon the United States to
allow the review and reconsideration of the conviction and sentence by
taking account of the violation of the rights set forth in the Convention.439
436 LaGrand, Judgment (see footnote 119 above), p. 485, para. 48,
citing Factory at Chorzów, Jurisdiction (footnote 34 above).
437 LaGrand, Judgment (see footnote 119 above), p. 512,
para. 123.
438 Ibid., p. 513, para. 124; see also the operative part, p. 516,
para. 128 (6).
439 Ibid., pp. 513–514, para. 125. See also paragraph 127 and the
operative part (para. 128 (7)).
The Court thus upheld its jurisdiction on Germany’s fourth
submission and responded to it in the operative part. It
did not, however, discuss the legal basis for assurances of
non-repetition.
(11) Assurances or guarantees of non-repetition may be
sought by way of satisfaction (e.g. the repeal of the legislation which allowed the breach to occur) and there is thus
some overlap between the two in practice.440 However,
they are better treated as an aspect of the continuation
and repair of the legal relationship affected by the breach.
Where assurances and guarantees of non-repetition are
sought by an injured State, the question is essentially the
reinforcement of a continuing legal relationship and the
focus is on the future, not the past. In addition, assurances
and guarantees of non-repetition may be sought by a State
other than an injured State in accordance with article 48.
(12) Assurances are normally given verbally, while guarantees of non-repetition involve something more—for example, preventive measures to be taken by the responsible State designed to avoid repetition of the breach. With
regard to the kind of guarantees that may be requested,
international practice is not uniform. The injured State
usually demands either safeguards against the repetition
of the wrongful act without any specification of the form
they are to take441 or, when the wrongful act affects its
nationals, assurances of better protection of persons and
property.442 In the LaGrand case, ICJ spelled out with
some specificity the obligation that would arise for the
United States from a future breach, but added that “[t]his
obligation can be carried out in various ways. The choice
of means must be left to the United States”.443 It noted
further that a State may not be in a position to offer a firm
guarantee of non-repetition.444 Whether it could properly
do so would depend on the nature of the obligation in
question.
(13) In some cases, the injured State may ask the responsible State to adopt specific measures or to act in a
specified way in order to avoid repetition. Sometimes the
injured State merely seeks assurances from the responsible
State that, in future, it will respect the rights of the injured
State.445 In other cases, the injured State requires specific
instructions to be given,446 or other specific conduct to be
440
See paragraph (5) of the commentary to article 36.
In the “Dogger Bank” incident in 1904, the United Kingdom
sought “security against the recurrence of such intolerable incidents”,
G. F. de Martens, Nouveau recueil général de traités, 2nd series,
vol. XXXIII, p. 642. See also the exchange of notes between China
and Indonesia following the attack in March 1966 against the Chinese
Consulate General in Jakarta, in which the Chinese Deputy Minister
for Foreign Affairs sought a guarantee that such incidents would not be
repeated in the future, RGDIP, vol. 70 (1966), pp. 1013 et seq.
442 Such assurances were given in the Doane incident (1886), Moore,
Digest, vol. VI, pp. 345–346.
443 LaGrand, Judgment (see footnote 119 above), p. 513, para. 125.
444 Ibid., para. 124.
445 See, e.g., the 1901 case in which the Ottoman Empire gave a
formal assurance that the British, Austrian and French postal services
would henceforth operate freely in its territory, RGDIP, vol. 8 (1901),
p. 777, at pp. 788 and 792.
446 See, e.g., the incidents involving the “Herzog” and the “Bundesrath”, two German ships seized by the British Navy in December
1899 and January 1900, during the Boer war, in which Germany drew
the attention of Great Britain to “the necessity for issuing instructions
441