The function for lawspeaker:
On the village covered area lawspeaker can make a safety zone, wich drain autority mutch fast, to make this zone very expensive, also limit it to village for example 1 tile for each 10 000 autority.
In this zone anyone else than lawspeaker and chief (mabe they cant too) can't attack other players, doing vandalism and theft. Just like a boston in salem.
Zone cant be build on houses, wall tiles, containers cant be build too, but containers can leave here for some time (as if player will need to place something on barter/vending stand from container). Building walls, houses on this zone declaims safety zone and leaving just village claimed area.
This zones will allow players to build safety trading places in their villages not only for villagers, but also for others who want trade with this village. Just because H8H mechanics dont allow build that places.