Attribution of Conduct to States

Attribution of Conduct to States is the process by which conduct is legally treated as an act of the State under International Law. It is a central element of State Responsibility because a State can generally be held internationally responsible only when the relevant conduct is attributable to it and constitutes a breach of an international obligation.

The principal rules are contained in Articles 4–11 of the Articles on Responsibility of States for Internationally Wrongful Acts, 2001 (ARSIWA).

The basic framework is:

Conduct

↓

Is the conduct attributable to the State?

↓

Does it breach an international obligation?

↓

Internationally wrongful act

↓

State responsibility

Meaning of Attribution

Attribution does not necessarily mean that the State physically carried out the conduct.

It means that International Law legally treats the conduct as conduct of the State.

For example, an individual government official may physically commit an act, but if that person is acting as a State organ, the conduct may legally be attributed to the State.

Therefore:

Physical actor ≠ necessarily legally responsible actor

The law of attribution determines when the conduct becomes State conduct.

Article 4: Conduct of State Organs

Article 4 ARSIWA provides the basic rule of attribution.

The conduct of any State organ is considered an act of that State under International Law.

A State organ may include:

• government departments;
• ministries;
• armed forces;
• police;
• courts;
• legislatures;
• administrative authorities;
• other organs exercising governmental functions.

The internal classification of the organ does not determine attribution under International Law.

Example

If a government ministry unlawfully refuses to perform an international obligation:

Ministry acts

↓

Ministry is a State organ

↓

Conduct attributable to State

↓

Possible State responsibility

De Jure and De Facto State Organs

Attribution may concern organs formally recognised under domestic law as well as situations where an entity effectively functions as a State organ under the relevant circumstances.

The important question is whether the conduct is legally attributable to the State under the applicable rules of International Law.

Article 5: Entities Exercising Governmental Authority

Not every entity exercising governmental functions is formally a State organ.

Article 5 ARSIWA provides that conduct of an entity that is not an organ of the State may nevertheless be attributable where:

• it is empowered by the law of the State to exercise elements of governmental authority; and
• it acts in that capacity in the particular instance.

This can include certain:

• public corporations;
• statutory bodies;
• delegated governmental agencies;
• other entities exercising public authority.

Example

A private company is authorised by State law to exercise a specific governmental power.

If it exercises that power in the relevant circumstances:

Private entity

↓

Governmental authority delegated by State

↓

Acts in that capacity

↓

Conduct may be attributable to State

Article 6: Organs Placed at the Disposal of Another State

Article 6 ARSIWA deals with an organ of one State that is placed at the disposal of another State.

Where the organ is placed at the disposal of another State and exercises elements of the governmental authority of that other State, its conduct may be attributable to the receiving State.

The actual relationship between the States and the functions being exercised are important.

Article 7: Excess of Authority or Contravention of Instructions

Article 7 ARSIWA contains an important rule.

Conduct of a State organ or entity exercising governmental authority remains attributable to the State even where the organ:

• exceeds its authority; or
• contravenes instructions.

This is sometimes described as the rule concerning ultra vires conduct.

Example

A police officer is instructed not to use excessive force but deliberately does so while acting in an official capacity.

The State cannot automatically avoid responsibility by saying:

“The officer violated our instructions.”

The conduct may still be attributable to the State.

Therefore:

State organ

↓

Acts beyond authority

↓

Conduct remains attributable

provided the conduct falls within the relevant scope of State-organ activity.

Article 8: Conduct Directed or Controlled by a State

Article 8 ARSIWA deals with persons or groups that are not State organs.

Their conduct may be attributable where they act:

• on the instructions of the State;
• under the direction of the State; or
• under the control of the State,

in carrying out the conduct.

This provision is particularly important where States operate through:

• armed groups;
• private actors;
• militias;
• other non-State entities.

Nicaragua v. United States

The Nicaragua v. United States (1986) case is particularly important in relation to State control over non-State actors.

The ICJ considered whether the conduct of the Contras could be attributed to the United States.

The Court distinguished between:

• general support or assistance; and
• the level of control necessary for attribution of particular conduct.

The case is therefore a leading authority concerning effective control in the context of attribution.

Effective Control

The Nicaragua judgment is commonly associated with the effective control approach.

The relevant question is not simply:

Did the State support the group?

Rather:

Did the State exercise the required degree of control over the relevant conduct?

This distinction is important because financial assistance, weapons or general political support do not automatically make every act of a non-State group attributable to the supporting State.

Tadić and the Overall Control Test

The Tadić case before the ICTY is also important in discussions concerning State control over organised groups.

The Appeals Chamber considered an overall control approach in determining the international character of an armed conflict.

However, the test developed in Tadić should not simply be treated as identical to the ICJ’s approach to State responsibility.

For State responsibility, Nicaragua remains a particularly important authority concerning attribution.

Article 9: Absence or Default of Official Authorities

Article 9 ARSIWA deals with exceptional situations where official authorities are absent or have ceased to function.

Conduct may be attributable to the State where persons or groups exercise elements of governmental authority:

• in the absence or default of official authorities; and
• in circumstances requiring the exercise of those elements of authority.

The rule recognises that extraordinary situations may require persons other than ordinary government organs to perform governmental functions.

Article 10: Insurrectional or Other Movements

Article 10 ARSIWA deals with the conduct of insurrectional or other movements.

Conduct of such a movement may become attributable to the State where the movement:

• becomes the new government of that State; or
• succeeds in establishing a new State in part of the territory of a pre-existing State.

Example

Insurrectional movement

↓

Overthrows existing government

↓

Becomes new government

↓

Conduct may be attributable to the State

The rule addresses situations in which the political identity of the governing authority changes but the international legal identity of the State continues.

Article 11: Conduct Acknowledged and Adopted by the State

Article 11 ARSIWA provides a residual basis of attribution.

Conduct that would not otherwise be attributable to the State may become attributable where the State:

• acknowledges and adopts the conduct as its own.

This requires more than merely approving or supporting the conduct.

The State must effectively adopt the conduct as its own conduct.

Attribution of Private Conduct

As a general principle, purely private conduct is not automatically attributable to the State.

For example:

Private individual

↓

Acts independently

↓

No State organ / governmental authority / State control

↓

Generally not attributable to State

However, the conduct may become attributable if one of the recognised attribution rules applies.

Attribution vs Responsibility

These concepts should not be confused.

Attribution

Asks:

Is the conduct legally the conduct of the State?

State Responsibility

Asks:

Has the State committed an internationally wrongful act?

Therefore:

Attribution

Breach of international obligation

↓

Internationally wrongful act

↓

State responsibility

Attribution by itself does not establish responsibility.

Attribution vs Breach

Attribution and breach are separate elements.

Attribution

The conduct is legally treated as State conduct.

Breach

The conduct is inconsistent with an international obligation binding upon the State.

For example:

State organ commits conduct

→ Attribution established.

But:

Does the conduct violate an international obligation?

→ Must be separately established.

Attribution and Domestic Law

Domestic law is relevant to identifying State organs, but domestic characterisation does not necessarily determine international responsibility.

International Law ultimately determines whether conduct is attributable to the State.

A State cannot necessarily escape international responsibility merely by arguing that the person or entity was not an organ under domestic law.

Attribution and Ultra Vires Conduct

One of the most important examination points is:

An official’s violation of domestic instructions does not automatically prevent attribution.

Under Article 7, conduct may remain attributable where the official acts in an official capacity even though the official:

• exceeds authority; or
• contravenes instructions.

Attribution and Non-State Actors

The most difficult attribution questions often involve:

• private military groups;
• militias;
• armed opposition groups;
• private companies;
• contractors;
• other non-State actors.

The key provisions are:

Article 5 → governmental authority

Article 8 → instructions, direction or control

Article 10 → insurrectional movements

Article 11 → acknowledgement and adoption

Attribution and International Organisations

The ARSIWA framework primarily concerns responsibility of States.

Conduct of an international organisation is governed separately by the Articles on the Responsibility of International Organizations (ARIO), 2011.

Therefore, State attribution and attribution to an international organisation should not be automatically conflated.

Attribution and Diplomatic Agents

Conduct of diplomatic agents acting as State officials may generally be attributable to the State because diplomatic agents are State organs or representatives acting on behalf of the State.

However, the precise legal issue depends upon the conduct and applicable international rules.

Attribution and Armed Forces

The armed forces of a State are State organs.

Therefore:

Armed forces

↓

Conduct

↓

Article 4

↓

Attributable to State

Even where individual members violate instructions, Article 7 may preserve attribution.

Attribution and Judicial Conduct

Courts and judges are State organs for purposes of attribution.

Therefore, judicial conduct can potentially engage State responsibility where it constitutes a breach of an international obligation.

This is important because States cannot avoid responsibility merely because the relevant conduct occurred through the judicial branch.

Attribution and Legislative Conduct

Legislative organs are also State organs.

A State may incur responsibility where legislation or legislative conduct violates an international obligation.

Thus:

Parliamentary action

↓

State organ

↓

Attribution

↓

Possible breach

↓

State responsibility

Attribution and Executive Conduct

Executive authorities, ministers, departments and administrative bodies generally constitute State organs.

Their conduct may therefore be directly attributable under Article 4.

Important Cases

Nicaragua v. United States, 1986

A leading case concerning State control over non-State actors and the attribution of conduct.

The ICJ distinguished between general support for the Contras and control over specific operations.

United States Diplomatic and Consular Staff in Tehran, 1980

The case concerned the seizure of the US Embassy and diplomatic personnel in Tehran.

The ICJ considered both the conduct of private militants and the subsequent conduct and omissions of Iranian State authorities.

It is important for understanding how conduct initially carried out by private actors may subsequently become connected to State responsibility.

Application of the Convention on the Prevention and Punishment of the Crime of Genocide, 2007

In Bosnia and Herzegovina v. Serbia and Montenegro, the ICJ considered attribution and State responsibility in relation to conduct of Bosnian Serb forces.

The Court applied a demanding standard when considering whether conduct of non-State actors could be attributed to Serbia.

Armed Activities on the Territory of the Congo, 2005

The ICJ considered attribution in the context of military activities and the conduct of armed forces.

Application of the Convention on the Prevention and Punishment of the Crime of Genocide, 2015

In the Croatia v. Serbia judgment, the ICJ again addressed issues concerning attribution and responsibility under the Genocide Convention.

Important Articles

Article	Subject
Article 1	Responsibility for internationally wrongful acts
Article 2	Elements of internationally wrongful act
Article 4	Conduct of State organs
Article 5	Entities exercising governmental authority
Article 6	Organs placed at disposal of another State
Article 7	Excess of authority
Article 8	Instructions, direction or control
Article 9	Absence or default of official authorities
Article 10	Insurrectional or other movements
Article 11	Conduct acknowledged and adopted by State

The Seven Main Attribution Rules

For examination purposes, remember:

Article 4

→ State organs

Article 5

→ Entities exercising governmental authority

Article 6

→ Organ placed at disposal of another State

Article 7

→ Excess of authority

Article 8

→ Instructions, direction or control

Article 9

→ Absence/default of official authorities

Article 10

→ Insurrectional movements

Article 11

→ Acknowledgement and adoption

Attribution Flowchart

Conduct occurs

↓

State organ?

→ Article 4

↓

Entity exercising governmental authority?

→ Article 5

↓

Organ placed at disposal of another State?

→ Article 6

↓

Official acted beyond authority?

→ Article 7

↓

Private person/group under State instructions, direction or control?

→ Article 8

↓

Governmental authority exercised during absence/default of official authorities?

→ Article 9

↓

Insurrectional movement becomes government/new State?

→ Article 10

↓

State acknowledges and adopts conduct?

→ Article 11

↓

Attribution

↓

Was an international obligation breached?

↓

Internationally Wrongful Act

Quick Revision

• Attribution → legal process of treating conduct as conduct of the State.
• Main provisions → Articles 4–11 ARSIWA.
• Attribution is one of the two elements of an internationally wrongful act.
• Article 4 → State organs.
• Article 5 → entities exercising governmental authority.
• Article 6 → organs placed at the disposal of another State.
• Article 7 → ultra vires conduct.
• Article 8 → instructions, direction or control.
• Article 9 → absence/default of official authorities.
• Article 10 → insurrectional movements.
• Article 11 → acknowledgement and adoption.
• Private conduct is not automatically attributable to a State.
• Attribution ≠ breach.
• Attribution + breach → internationally wrongful act.
• Nicaragua v. United States (1986) → important for control over non-State actors.
• Tehran Hostages (1980) → important for private actors and subsequent State conduct.
• Bosnia Genocide (2007) → important for attribution and State responsibility.
• Domestic law does not by itself determine international attribution.
• Excess of authority does not automatically prevent attribution.
• State responsibility and individual criminal responsibility are separate.

Core Formula

Conduct + Attribution to State + Breach of International Obligation = Internationally Wrongful Act

And remember:

Articles 4–11 ARSIWA = Core rules of attribution

Conclusion

Attribution of Conduct to States is a central component of the law of State Responsibility because it determines when particular conduct is legally regarded as conduct of a State. The principal rules are contained in Articles 4–11 of the Articles on Responsibility of States for Internationally Wrongful Acts, 2001. Under Article 4, the conduct of State organs, including legislative, executive and judicial organs, is attributable to the State. Article 5 extends attribution to entities empowered to exercise governmental authority, while Article 6 addresses organs placed at the disposal of another State. Article 7 establishes that conduct of State organs may remain attributable even when the organ exceeds its authority or contravenes instructions. Article 8 is particularly important for non-State actors because conduct may be attributed where persons or groups act on the instructions of, or under the direction or control of, a State. Articles 9 and 10 address exceptional situations involving the absence of official authorities and insurrectional movements, while Article 11 provides that conduct may become attributable where the State acknowledges and adopts it as its own. Purely private conduct is not automatically attributable to a State; a recognised legal basis for attribution must exist. The ICJ’s Nicaragua v. United States (1986) judgment is a leading authority concerning State control over non-State actors, while United States Diplomatic and Consular Staff in Tehran (1980) and Bosnia and Herzegovina v. Serbia and Montenegro (2007) are important for understanding attribution and State responsibility in different contexts. Attribution must also be distinguished from breach: attribution establishes that conduct is legally the State’s conduct, while breach requires that the conduct violate an international obligation binding upon the State. Accordingly, the central structure is attribution + breach = internationally wrongful act, which may then give rise to State responsibility and the consequences of cessation and reparation.