- diplomatic: adj. 1.外交(上)的；有外交手 ...
- courier: n. 1.信使，急件遞送人。 2.( ...
- by courier: 由快遞公司傳遞
A diplomatic courier is an official who transports diplomatic bags as sanctioned under the 1961 Vienna Convention on Diplomatic Relations. Couriers are granted diplomatic immunity and are thereby protected by the receiving state from arrest and detention when performing their work.