What does a prisoner mean?

Explanation: Prisoners in prison.

Source: The Criminal Law of the Ming Dynasty II: "Anyone who is detained will have the old illness dispersed and the severity will be classified." The strange situation witnessed in the past twenty years is the fourth and third time: "There is nothing at the moment. In fact, we should be released. What are we doing here as prisoners? " He Luo's The Cage of out of the dark: [The Prison Head and the Forbidden Son] Usually evil as the devil, and rude to the prisoners. "