I think I know which dog your talking about, well one of them, the large black dog with very white paws, he did have a partner exactly looking the same but I think without white paws, he was taken a while back and put down because I heard he bit someone, now that you mentioned it, I havent seen the white paw dog in a while, he usually roamed with a smaller black dog, that I see is still around.
The white paw dog roamed everywhere, usually with the Old women but most times without her, they would roam all the way to the Kindergarten on mang kung uk road, they were never microchipped or vaccinated, those people will never spend money on these things, the dog used to be friendly but once it started partnering up with the smaller black dog, it started getting aggressive even when I walked past with my pack, never used to happen before, he's felt my whip a few times, I see more and more people moving in to our village, some have small dogs they walk in the evenings and having large dogs roaming around with no leash can be scary for them.
I've seen the AFCD van at the top a few times, if the dog isnt chipped or hasnt got a collar I think they take em away.