Answer: prison riots and increased interpersonal violence
Explanation:
With prisoners having more freedom in prisons, they regularly came into contact with other prisoners. As the prisons became overcrowded, contact with other prisoners increased and so did tensions.
These tensions boiled over into interpersonal violence and conflict which escalated sometimes into full blown riots such as the Attica Prison riot of 1971 and the Ohio State Penitentiary riot in 1968.