Hours later...
I had already scouted the area and here we are, where the three of them last attacked. There were no bandits stationed here; conceivably they were still dealing with the aftermath of the attack.
And as this place is the shortest route for merchants' supplies, this route is reasonably common for bandits to use. They might not attack or sometimes drive away from the merchants, but they still demand a payment to pass.
I don't know what the government was doing or what the authorities in nearby cities do, but they actually care less since it's outside their premises.
If they don't rule over a piece of land, they won't care for it. Perhaps the capital of the dukedom will be the one to take action, not those regional or local governments.
After scouting the area, I returned to the four girls' side and reported everything I could get on the geography.
Apparently, the woods are common hideouts for bandits and lower criminal groups.