Introduction: Freedom of the High Seas Under International Law
The freedom of the high seas is a foundational principle of international law. The high seas comprise all parts of the sea that are not included in the exclusive economic zone, territorial sea, internal waters, or archipelagic waters of any state. These areas are open to all states, whether coastal or landlocked. No state may validly claim sovereignty over any part of the high seas. The principle ensures that the oceans remain available for peaceful use by the international community.
Legal Basis Under UNCLOS, 1982
UNCLOS provides the modern legal framework for the freedom of the high seas. Article 87 declares that the high seas are open to all states and enumerates the principal freedoms. These freedoms must be exercised with due regard for the interests of other states and for the rights under the Convention with respect to activities in the Area.
Main Freedoms of the High Seas Under Article 87
Article 87 of UNCLOS recognises the following freedoms for both coastal and land-locked States:
1. Freedom of Navigation
Every state has the right to sail ships flying its flag on the high seas.
2. Freedom of Overflight
Aircraft of all states may fly over the high seas.
3. Freedom to Lay Submarine Cables and Pipelines
Subject to Part VI of the Convention.
4. Freedom to Construct Artificial Islands and Other Installations
Permitted under international law, subject to Part VI.
5. Freedom of Fishing
Subject to the conditions laid down in Section 2 of Part VII (Articles 116–120).
6. Freedom of Scientific Research
Subject to Parts VI and XIII.
Important Rules and Limitations on the Freedom of the High Seas
The freedoms of the high seas are not absolute. UNCLOS imposes clear limitations:
1. No Claim of Sovereignty
Article 89 prohibits any State from subjecting any part of the high seas to its sovereignty.
2. Flag-State Jurisdiction
Under Article 92, ships on the high seas are subject to the exclusive jurisdiction of the flag State, save in exceptional cases expressly provided for in international treaties or the Convention.
3. Duty to Cooperate Against Piracy
Articles 100–107 require all States to cooperate in the repression of piracy.
4. Suppression of the Slave Trade
Article 99 obliges every state to take effective measures to prevent and punish the transport of slaves.
5. Conservation of Living Resources
Articles 116–120 require States to cooperate in the conservation and management of the living resources of the high seas.
6. Protection of the Marine Environment
Article 192 imposes a general obligation on states to protect and preserve the marine environment.
Important Case Law on Freedom of the High Seas
1. The Lotus Case (France v. Turkey, 1927)
The Permanent Court of International Justice affirmed the principle that a State may not exercise jurisdiction over foreign ships on the high seas except where permitted by international law, while recognising that jurisdiction is not invariably exclusive to the flag State.
2. The S.S. Wimbledon Case (1923)
The Court underscored the importance of freedom of navigation in international waterways, reinforcing the broader principle of free maritime communication.
Conclusion: Importance of Freedom of the High Seas
The freedom of the high seas remains a cornerstone of the modern law of the sea. UNCLOS, 1982, safeguards the right of all states to use the high seas for navigation, overflight, fishing, scientific research, and other peaceful purposes. These rights, however, must be exercised responsibly, with due regard for the rights of other states, the conservation of marine resources, and the protection of the marine environment. In this way, the high seas continue to function as a common heritage of freedom and cooperation for the benefit of humankind.
