Gib latest - Vienna Convention infringement!

Spanish police have open a diplomatic bag!

And?

The Foreign Office said diplomatic bags were "inviolable" and opening one was "a serious infringement" of the Vienna Convention on diplomatic relations.

Is Gibraltar covered by the Convention?
If not it cannot be an infringement.
Article 27 covers bags from and to the host states(Spain) British offices and the British Foreign office.
So that's bags between the Court of St. James's in London and the British representative in Spain.