What is the golden chain of justice by jahangir?

Jahangir was an emperor who cared for his countrymen. Emperors are supposed to help the people of their empire as the empire wouldn't be complete without them. So Jahangir, when he first came to the throne, set up something called a "chain of justice" to help the people of his empire when they had a problem which had to be solved. Jahangir himself would help solve the problem and give his viewpoints.