JOHANNESBURG, SOUTH AFRICA – DECEMBER 22: Correctional service officers and prisoners during raid on December 22, 2015 at Johannesburg Correctional Services centre in Johannesburg, South Africa. Bags of dagga, makeshift screwdrivers, daggers, spoons, cellphones, chargers, kettle elements, plugs and home-made weights for lifting were confiscated during an impromptu raid. The raid is part of Operation Vala, which began at prisons countrywide on November 4. (Photo by Gallo Images / Beeld / Denzil Maregele)