That light looks very aggressive with the heavy square pattern and cooling fins, much more intimidating than a stock maglight. At least thats how I think a non flashaholic would see it. As C.D. said its all context, if you are taking a walk down a fairly well lit city street I could see a LEO taking a dim view of that light. Or a 4D maglight for that matter. If you are night hiking in the woods it would probably be acceptable, at least you could use the excuse of needing the extra runtime or brightness.