Comprehension
To every State whose land territory is at any place washed by the sea, international law attaches a corresponding portion of maritime territory. International law does not say to a State: “You are entitled to claim territorial waters if you want them.” No maritime State can refuse them. International law imposes upon a maritime State certain obligations and confers upon it certain rights arising out of the sovereignty which it exercises over its maritime territory.

The possession of this territory is not optional, not dependent upon the will of the State, but compulsory. In the ninth edition of Oppenheim's International Law, the nationality of ships in the high seas has been referred to in paragraph 287, wherein it has been observed that the legal order on the high seas is based primarily on the rule of International Law which requires every vessel sailing the high seas to possess the nationality of, and to fly the flag of, one State, whereby a vessel and persons on board the vessel are subjected to the law of the State of the flag and in general subject to its exclusive jurisdiction.

In paragraph 291 of the aforesaid discourse, the learned author has defined the scope of flag jurisdiction to mean that jurisdiction in the high seas is dependent upon the Maritime Flag under which vessels sail, because no State can extend its territorial jurisdiction to the high seas. Of course, the aforesaid principle is subject to the right of “hot pursuit”, which is an exception to the exclusiveness of the flag jurisdiction over ships on the high seas in certain special cases.
Question: 1

A Coastal State, subject to the obligations imposed by International Law, has sovereignty over its:

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Territorial sovereignty of a coastal State extends not just over waters, but also the seabed, subsoil, and airspace — similar to sovereignty over land territory.
Updated On: Aug 17, 2025
  • Territorial waters, the seabed and subsoil underlying such waters, and the air space above them.
  • Territorial waters, the seabed and subsoil underlying such waters.
  • Territorial waters only.
  • Territorial waters and the air space above them.
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The Correct Option is A

Solution and Explanation

Step 1: Sovereignty over maritime zones.
According to international law, particularly as codified in the United Nations Convention on the Law of the Sea (UNCLOS), a coastal State exercises full sovereignty over its territorial waters, the seabed and subsoil beneath such waters, and the air space above. This sovereignty is similar to that exercised over its land territory.
Step 2: Scope of rights and obligations.
This sovereignty is subject to obligations imposed by international law, including innocent passage rights of foreign vessels. However, within this 12 nautical mile zone from the baseline, the State’s authority is supreme over the water column, the seabed and subsoil, and the airspace above.
Step 3: Elimination of wrong options.
- (B) excludes air space, which is incorrect as airspace sovereignty is also recognised.
- (C) excludes seabed, subsoil, and air space, hence incomplete.
- (D) excludes seabed and subsoil, which is part of the sovereign rights.
\[ \boxed{\text{A}} \]
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Question: 2

Which provision of the United Nations Convention on the Law of the Sea 1982 (UNCLOS) makes an express declaration that: ``No State may validly purport to subject any part of the high seas to its sovereignty.''?

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High seas are part of the “global commons” — UNCLOS Article 89 ensures no State can claim them as its territory.
Updated On: Aug 17, 2025
  • Article 86
  • Article 87
  • Article 88
  • Article 89
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The Correct Option is D

Solution and Explanation

Step 1: Understanding the high seas principle.
Under UNCLOS, the high seas are open to all States, whether coastal or landlocked, and no State may claim sovereignty over any part of them. This principle ensures freedom of navigation, overflight, laying of submarine cables and pipelines, and other internationally lawful uses.
Step 2: Relevant Article.
Article 89 of UNCLOS clearly declares: “No State may validly purport to subject any part of the high seas to its sovereignty.”
Step 3: Elimination of options.
- (A) Article 86 defines the scope of the high seas provisions but does not contain the prohibition.
- (B) Article 87 details the freedoms of the high seas but not the sovereignty prohibition.
- (C) Article 88 reserves the high seas for peaceful purposes but is not the relevant provision here.
- (D) Article 89 specifically addresses the sovereignty prohibition.
\[ \boxed{\text{D}} \]
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Question: 3

According to Article 94(7) of the United Nations Convention on the Law of the Sea 1982 (UNCLOS), in the event of a marine casualty or incident of navigation on the high seas involving a ship flying a State’s flag and causing loss of life or serious injury to nationals of another State, which of the following shall be the duty of the Flag State?

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For Art. 94(7), look for the keyword “cause an inquiry to be held” — that’s the flag-State’s specific duty after serious high-seas casualties.
Updated On: Aug 17, 2025
  • To conform to generally accepted international regulations, procedures and practices and to take any steps which may be necessary to mitigate the damage so caused.
  • To cause an inquiry to be held by or before suitably qualified person(s) into such casualty or incident.
  • To investigate the matter and, if appropriate, take any action necessary to remedy the situation.
  • To assume jurisdiction under its internal law over such casualty or incident in respect of its administrative, technical and social implications.
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The Correct Option is B

Solution and Explanation

Step 1: Identify the precise obligation in Art. 94(7).
UNCLOS Article 94 sets out flag-State duties. Clause (7) specifically mandates that, where a serious marine casualty on the high seas involves a ship flying a State’s flag and results in loss of life or serious injury to nationals of another State, the flag State shall cause an inquiry to be held by or before suitably qualified persons.
Step 2: Distinguish from broader/other duties.
While Articles 94(1)–(6) speak of general compliance with international regulations and effective jurisdiction/control, clause (7) pinpoints the investigative duty via a formal inquiry before qualified persons.
Step 3: Eliminate distractors.
(A) General compliance duty — not the specific Art. 94(7) obligation.
(C) Vague “investigate/take action” — lacks the formal inquiry requirement.
(D) Internal-law jurisdiction reference — broader administrative aspects, not the mandated inquiry.
\[ \boxed{\text{B}} \]
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Question: 4

Territorial waters are not only ‘territory’ but also a compulsory _________ to the coastal state.

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Think of territorial waters as the automatic maritime extension of land territory — in legal terms, an appurtenance.
Updated On: Aug 17, 2025
  • Liability
  • Equitable interest
  • Appurtenance
  • Trust
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The Correct Option is C

Solution and Explanation

Step 1: Meaning of “appurtenance”.
In public international law, an appurtenance is something that naturally and inseparably attaches to the principal thing. Territorial waters are treated as a necessary extension of a coastal State’s land territory.
Step 2: Why compulsory.
International law (as reflected in UNCLOS and classic writers) treats territorial sea as inherent and compulsory to maritime States — not optional or dependent on a claim — carrying both rights (sovereignty) and obligations (e.g., innocent passage).
Step 3: Eliminate distractors.
(A) Liability = responsibility, not an attachment to territory.
(B) Equitable interest = private-law proprietary notion, inapt here.
(D) Trust = fiduciary concept, not the status of territorial waters.
\[ \boxed{\text{C}} \]
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Question: 5

The right of ‘hot pursuit’, which has been codified in Article 111 United Nations Convention on the Law of the Sea 1982 (UNCLOS) recognises that:

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“Hot pursuit” ends where another State’s sovereignty begins — it’s only valid on the high seas or international waters.
Updated On: Aug 17, 2025
  • A vessel, if it has committed a violation of the laws of a foreign State while in that State’s sovereign or territorial waters, may be pursued onto the high seas.
  • A vessel, if it has committed a violation of the provisions of the UNCLOS while in that State’s sovereign or territorial waters, may be pursued onto the high seas.
  • A vessel, if it has committed a violation of the laws of a foreign State while in that State’s sovereign or territorial waters, may be pursued onto the foreign State’s sovereign or territorial waters.
  • A vessel, if it has committed a violation of the laws of a foreign State while in that State’s sovereign or territorial waters, may be pursued onto a third State’s sovereign or territorial waters.
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The Correct Option is A

Solution and Explanation

Step 1: Understanding “Hot Pursuit” in UNCLOS.
Article 111 UNCLOS codifies the right of “hot pursuit” — it allows a coastal State to pursue and arrest a foreign vessel beyond its territorial sea if that vessel has violated the State’s laws or regulations within internal waters, archipelagic waters, territorial sea, or contiguous zone.
Step 2: Conditions for hot pursuit.
- Pursuit must begin when the vessel is within the internal waters, archipelagic waters, territorial sea, or contiguous zone of the pursuing State.
- The pursuit must be continuous and uninterrupted.
- It ends when the pursued vessel enters the territorial waters of its own State or a third State.
Step 3: Applying to options.
(A) Matches Article 111 — violation within the coastal State’s waters allows pursuit onto the high seas.
(B) Incorrect — references UNCLOS provisions in general, not the specific law violation requirement.
(C) Incorrect — pursuit cannot continue into another State’s sovereign waters.
(D) Incorrect — Article 111 does not permit pursuit into a third State’s waters.
\[ \boxed{\text{A}} \]
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Question: 6

In which of the following judgments, the Supreme Court of India has opined that “sovereignty is not ‘given’, but it is only asserted”?

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The Enrica Lexie case is key to understanding India’s jurisdictional reach in maritime zones under UNCLOS.
Updated On: Aug 17, 2025
  • State of Tamil Nadu v. Mariya Anton Vijay, (2015) 9 SCC 294.
  • Great Eastern Shipping Co. Ltd. v. State of Karnataka, (2020) 3 SCC 354.
  • Republic of Italy through Ambassador v. Union of India, (2013) 4 SCC 721.
  • Sabeeha Faikage v. Union of India, (2013) 1 SCC 262.
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The Correct Option is C

Solution and Explanation

Step 1: Context of the case.
This landmark case arose from the Enrica Lexie incident (2012), where two Indian fishermen were killed by Italian marines off the coast of Kerala. The jurisdictional dispute centred on whether India could try the marines under its laws, given the incident took place in the contiguous zone.
Step 2: The Supreme Court’s observation.
In its judgment, the Court stated: “Sovereignty is not ‘given’, it is asserted”, underscoring that India’s assertion of jurisdiction over the contiguous zone and EEZ stems from international law rights (UNCLOS) and domestic legislation (Maritime Zones Act).
Step 3: Eliminating other options.
(A) Mariya Anton Vijay — deals with arrest warrants in foreign waters.
(B) Great Eastern Shipping — deals with tax and maritime trade jurisdiction.
(D) Sabeeha Faikage — concerns passport and citizenship issues.
\[ \boxed{\text{C}} \]
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