An alleged American bank fraudster (going by the name of James Castle) facing extradition from Australia spun an “elaborate ruse” about his connection to an international finance organisation so top-secret it could be verified only by Prime Minister Malcolm Turnbull or the Queen.

https://www.smh.com.au/national/victoria/ask-the-queen-or-pm-alleged-us-fraudster-seeks-diplomatic-immunity-20180623-p4zna0.html