Comment by southphillyman

If it's really sealed this may be a scenario where you'd be better off not mentioning it. Similar thing happened to me when I went through a security clearance for a position. I mentioned that I was arrested once upon a time and the charges were expunged as part of an agreement. It didn't come up in their search but since I mentioned it they still wanted to know details. Details that were impossible to get since it was sealed/expunged. I essentially created a problem for myself by being honest.