Also, you may wish to build over the place of the constitutionally indorsed legal execution, the cabin or smelter. The scent of the murder will imperil you and if you place over the scents a construction, it will be more difficult for the minions of the oppressive tyrant to collect these against you before they decay and you become safe.
It is my suggestion also, that you do not name your village nor the supergrid where is it, so that no one nefarious may know where to seek the scents.