Mandela and Sisulu did not trust other racial groups, but Mandela's views changed during the 1952 Defiance Campaign.
Mandela was made the National 'Volunteer-in-chief' of the Defiance Campaign.
In December 1952, Mandela and Oliver Tambo opened the first Black legal partnership in the country. In the same month, Mandela and some other activists were charted under the Suppression of Communism Act. Mandela was sentenced to nine months' imprisonment with hard labour, suspended for two years.