As I’ve previously said, I love the atmosphere in L.A. Noire, and of course part of that is the graphics. During investigations of possible clues, I noticed a rather neat little trick they pull.
Since finding and examining clues is important, then they’ve spent time polishing this aspect. If you have (say) two objects you can look at, they’re presented as lower-polygon (but still very acceptable) objects. The moment you choose one to examine, it’s replaced with a more detailed, higher poly-count object. It’s a beautiful way of handing the balance between practical (how many polygons you can push out) and the necessary (how much detail you need for the job).