Oh! If you're making a new build, it would also be good to do something (up to you what) about the ambiguity of "the closest witness to X is Y".
Usually, it's straightforward to tell if this is a lie; but sometimes the question of "how is a diagonal measured" affects the answer.
I think I had something like:
_W2_
W1_C
Witness 1 is clearly 2 spaces away from the count; but witness 2 is either 1 space, sqrt(2) spaces, or 2 spaces, depending on how you are measuring distance in the grid system.