The Queen is the Head of State and Prince of Wales is representing her when he is travelling. It is irrelevant who carried out the actions. The Head of State represents all peoples and their actions, good or bad..
That would be true in a presidential system of government as in the US, but it is definitely not true in a constitutional monarchy with a parliamentary system of government where the King/Queen is exempt from political responsibility. The principle of sovereign immunity and lack of responsibility of the monarch for government decisions is actually one of the pillars of all modern European monarchies and is precisely what allows the sovereign to stay above partisan politics.
A few quotes to clarify that point:
Constitution of the Netherlands, Section 2
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Article 42
(1) The Government
shall comprise the King and the Ministers.
(2) The Ministers, and not the King, shall be responsible for acts of government.
Constitution of Denmark, Part III[/FONT]
Section 13 [Responsibility of Ministers][FONT=Arial,Helvetica]
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The King shall not be answerable for his actions; his person shall be sacrosanct. The Ministers shall be responsible for the conduct of the government; their responsibility shall be determined by Statute.[/FONT]
Constitution of Belgium, Section IIII
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Article 106 [/FONT][FONT=Arial,Helvetica]
No actions of the King may take effect without the countersignature of a minister, who, in doing so, takes responsibility upon himself.
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Constitution of Norway, Section B
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§ 5 [/FONT][FONT=Arial,Helvetica]
The King's person is sacred; he cannot be censured or accused. The responsibility rests with his Council.[/FONT][FONT=Arial,Helvetica]
Constitution of Spain, Title II
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Article 64 [/FONT][/FONT][FONT=Arial,Helvetica][FONT=Arial,Helvetica]
(1) The actions of the King shall be countersigned by the President of the Government and, when appropriate, by the competent ministers. The nomination and appointment of the President of the Government and the dissolution provided for in Article 93 shall be countersigned by the President of the House of Representatives.
(2) The persons who countersign the acts of the King shall be responsible for them.
[/FONT][/FONT][FONT=Arial,Helvetica][FONT=Arial,Helvetica]The 1975 Swedish Instrument of Government goes one step further by separating the King entirely from the government (and, therefore, automatically exempting him of any political responsibility) while reaffirming at the same time his immunity from criminal prosecution.
Swedish Instrument of Government
Chapter 6
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Article 1[/FONT][FONT=Arial,Helvetica]
The Government comprises the Prime Minister and other members of the Cabinet.The Prime Minister is appointed in the manner prescribed in Articles 2 to 4. The Prime Minister appoints the other members of the Cabinet.
Chapter 5
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Article 7[/FONT][FONT=Arial,Helvetica]
The King cannot be prosecuted for his act or omissions. A Regent cannot be prosecuted for his act or omissions as Head of State.[/FONT][/FONT][/FONT][/FONT][/FONT]
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