151. Writ against persons abroad.

The writ of habeas corpus cannot be issued against a person who is abroad, it being issuable only for immediate service on a person who is within the jurisdiction at the date of issue1; or against a person who is on board a public vessel of war of a foreign state even though in British waters2; or in respect of an alien detained, in England, in a foreign embassy or legation of the country to which he belongs