Regarding the offensive joke told at a CFMEU dinner about Tony Abbott's chief of staff:
Environment Minister Tony Burke’s office said he expressed outrage to other people on his table and left “shortly after”.
The dinner was in Canberra. Unless Burke has his own car in Canberra, he would have left in a taxi or ComCar (Commonwealth Car).
When you use either of those means of travel, you have to sign a docket. Perhaps the Minister could release his docket for his departure from the dinner, which would show the time he actually left? That way, we could determine what "shortly after" actually means.