Big Kev Nothing is disgraceful about being suspicious of passengers, infact it is good security. What is disgraceful is the crew then refusing to fly...You have a concern you voice it, you are at the gate so you have the bonafides checked. Are... travelling in a group.... booked by the Government of Australia...OK, these guys are clean now get on with your job and thanks for the concern. If this sort of procedure or similar was followed and they still refused to fly then that is disgraceful. If QF don't have a procedure to follow in cases such as these then they are way behind in not just service.