Australian Prime Minister Malcolm Turnbull speaks at the government offices in Sydney on July 10. On Tuesday, Turnbull called for an investigation into allegations that teenagers were abused at a juvenile detention center in the northern part of the country.
In this 2014 photo, prisoners are closely guarded at Chikurubi Maximum Prison in Harare, Zimbabwe. According to state media, at least 200 male inmates were freed from this prison as a result of President Robert Mugabe's pardons.
After he was recaptured from breaking out of a maximum security prison in Mexico, Mexican drug lord Joaquin "El Chapo" Guzman is escorted by army soldiers to a waiting helicopter on Jan. 8.
Karriem Saleem El-Amin of Baltimore is one of the more than 130 prisoners serving life sentences for violent crimes who were released on probation following a landmark ruling by Maryland's highest court.