Moosa was born in Cape Town and was educated at
Athlone High School where he matriculated in 1954. He obtained a Diploma in Law at the
University of Cape Town in 1960, after which he was admitted as an attorney in 1962. His career as a judge started in 1998 when he acted as a judge, first at the
Free State Division and then the
Western Cape Division. In 1997, he got involved supporting the Kurdish freedom movement and encouraged several politicians of the
African National Congress (ANC) to take part in the
Musa Anter peace train. He was permanently appointed to the Cape bench on 18 May 1999. Moosa was actively involved in human rights issues and represented the
United Democratic Front and the
African National Congress in a number of cases. He was also a member of the ANC Constitutional Committee. In 2004 he was awarded the
Order of the Disa by the
Western Cape Province. He died on February 26, 2017. ==References==