To be honest, Darwin is probably now the centre of terrorism attention thanks to me passing through there a few years back sorry guys.
A. My clothes were too para-military for them and upset other passengers
B. Empty ammo brass in carry on is an offence apparently
C. Security screening don't know what pistol magazines look like
D. A half deaf flight attendant thought I said I had a bomb on board (didn't actually say that I swear)
E. Pistols aren't allowed in checked baggage without telling someone
PS: I am aware that most of these aren't offences but it seems they weren't!
PPS: I once saw my bag go through the X-ray and there was a pistol in it, so I freaked out a little as I grabbed my bag. Turns out it was a training aid! If they miss more than a few they have to be retrained. It's possible if you saw a pistol in a bag it may have been a fake digital one.