Bience is the daughter of Philemon Gawanab and Hilde Rheiss. She attended secondary school at St TheresaCatholic school in Tses, ǁKaras Region, southern Namibia. From Tses she went to University of the Western Cape in Cape Town, South Africa, to study law; Catholic sponsors helped her resist the pressure of apartheid officials to switch careers from law to nursing. She was expelled from UWC after the Soweto uprisings in 1976. After her expulsion she became an active member of SWAPO Youth League in Namibia and a teacher. She went into exile and lived in Zambia, Angola and Cuba. In 1981 the International Labour Organization sponsored her as an intern at their headquarters and subsequently on a labour law study. After this Africa Educational Trust sponsored her through a law degree at University of Warwick, UK. She graduated in 1987 and qualified as a barrister at Lincoln's Inn, London in 1988. Namibia was occupied illegally by South Africa until 1990. "When I decided to study law, a white schools inspector told me that as a black child my intelligence was lower than that of a white child and that maybe law was not meant for me," she said to one interviewer. "Today I am a lawyer and I have proved that intelligence has got nothing to do with a person's colour." Gawanas's interest in law was sparked after her beloved elder brother Jeka was picked up by whites and beaten to death while hitch-hiking, and police decided it was a "road accident".
Biography
Her practical training included work with Lord Tony Gifford on human rights cases such as the "Birmingham Six" appeal of alleged bombers who were later exonerated. Throughout her exile, Bience continued to campaign for Namibia's freedom from South African rule. In 1988 she travelled to Zambia to visit her daughter and was detained by SWAPO. Over an extended period the movement detained many thousands of Namibians as part of a "spy scare". These allegations were never proved despite months of solitary confinement and torture. Gawanas later became one of the first Namibians to return alive from the "dungeons" in Lubango, Southern Angola, in 1989, some months before many other surviving detainees were released. By July 1989, she and her daughter were repatriated by the United Nations and were back on Namibian soil. Her first job back in Namibia from exile was with Advocate Anton Lubowski, which ended when apartheid agents murdered Lubowski on his front doorstep in an unsuccessful attempt to destabilize the 1989 UN-supervised elections. She then worked as with the public-interest Legal Assistance Centre until 1991 when she was appointed by Parliament to the Public Service Commission of Namibia. Her work there included extensive rebalancing of the Namibian civil service. President Sam Nujoma appointed her Ombudsman, on recommendation of the Judicial Services Commission, in 1996 and she served there, investigating and resolving complaints of maladministration at all levels, until 2003. She also served as Executive Secretary of the African Ombudsman Association. In July 2003 Gawanas was elected by the African Heads of State as Commissioner of Social Affairs for the African Union Commission, based in Addis Ababa, Ethiopia. She has been seeking to increase the profile of social development issues on the continental agenda. She was elected for two terms, in 2003 and 2008, and after completing her second term in October 2012, she returned to Namibia where she became Special Advisor to the Minister of Health and Social Services. In January 2018 Gawanas was appointed Special Adviser on Africa for the United Nations by UN Secretary‑General António Guterres. She serves at the level of Under-Secretary-General.