If we explain that each Lot checked bags and see all the bags that have a different subject or not (see above, do not flip the view below).And secretly examine every floor. 1 per bag layer by flipping the entire top and bottom. The left and the right.
If we explain Lot Check every bag and every time the bags that are damaged or not. (See above do not flip, see below) and lie detector on every floor, each floor one bag by flipping both the top and bottom. Left and right