TSHWANE, SOUTH AFRICA – OCTOBER 16, 2017: Police monitor the situation during the 10111 emergency call centre workers march to the Union Buildings to hand over a memorandum of demands on October 16, 2017 in Tshwane, South Africa. The workers, whom belong to the South African Police Union (SAPU) have been on strike since 18 July 2017.(Photo by Gallo Images / Alet Pretorius)