Section 169
Powers of command when portions of different Services are serving together
When portions of two or more Services of the armed forces are serving together, command of those portions may be exercised by such officer of any Service of the armed forces as may be designated by the competent authority.
(2)
An officer designated as aforesaid shall have command over all officers and servicemen serving in such portions.
(3)
When portions of two or more Services of the armed forces are serving together in a composite formation, unit, station or establishment, officers and servicemen serving therein shall, unless the competent authority otherwise directs, obey the orders of all persons, irrespective of their Services, who are senior to them in rank in that formation, unit, station or establishment.
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