Senator Johnston asked the Minister representing the Minister for Defence, upon notice, on 22 March 2011: With reference to the answer provided to question on notice numbers 117-119: (1) How many attended the VIP catered event at the Williamtown Air Show from 10 November to 1 November 2010. (2) What was the cost per head for this function. (3) What was the official purpose of this function. (4) Who approved the expenditure.