[StaleWater]

Didnt people go to prison if a (whatever they called in in rome) ruler didnt like them

Not really

With the consent of the Senate, Augustus slowly assumed the sole leadership of the Empire, and while he disliked titles (even the title of emperor); he took instead the title of “princeps” meaning “first citizen.” Initially, he was a consul (a position other emperors would also hold) and provincial governor (of Gaul, Syria, Egypt andCyprus, the latter gave him control of a majority of the military); as emperor he would command twenty-six legions. The Senate bestowed on him, and thereby his successors, certain powers for life:imperium maius, extreme authority over the provincial governors; and tribunicia potestas or tribune of the plebs, the authority to call an assembly of the people to enact laws. With his new powers, he could veto the actions of the magistrates (whom he would later appoint), and, in order to control those around him, he controlled the imperial patronage - no one could “run” for office without his consent. He also interfered with the religion of the empire. He rebuilt decaying temples, resurrected old religious ceremonies and assumed the title of Pontifex Maximus or Chief Priest. In short, the emperor’s word became law.

Where in this does it say he put individuals in jail? That was the question at hand correct?

That was just explained that he could do what Ever He wanted to do but he burned/killed Christians and put people in jail he disagreed with... Hope you learned something new and enjoyed your history lesson today