If there are enough randomly selected volunteers, you can reasonably assume trust in their witness accounts together. You don't need to volunteer there persona

If there are enough randomly selected volunteers, you can reasonably assume trust in their witness accounts together. You don't need to volunteer there personally. But wait... what if everyone assumes the volunteers are mostly ordinary citizens doing their civic duty? What if, in reality, anyone can apply to be a volunteer but the system systematically always chooses its own plants...? And when you volunteer, as luck would have it they pick someone else "at random".