dont know if this will help........but.....I was arrested for Trespassing and the charges were later dropped. It was a stupid arrest to say the least. Anyways, when I applied at my current airline....the app asked...."have you ever been CONVICTED of a crime?" I answered no because I had not.
With that said, I never brought it up in the interview, not because I was scared but because that is all they asked me. I am all for 100% honesty but at the same time I was not going to bring up something that happened 7 months earlier knowing it was not a reflection of who I really am. They never asked me about it and I never brought it up. Even though I was nervous about it after the interview, I got hired and went through training with nothing ever being brought up. If you were convicted, definitely bring it up but all my friends I talked to about it told me not to bring it up in my interview unless they asked. My 2 cents. Good luck man!