27 March 1985
Beyers Naudé, Allan Boesak and 200 others are arrested for leading a march through the city of Cape Town to Pollsmoor Prison. They were protesting for the release of Nelson Mandela. The charges were subsequently dropped, but the South African police kept the two men under surveillance.
References

Gastrow, S. (1985). Who's Who in South African Politics Vol 2, Johannesburg: Ravan.|N., Jr. Sheppard, Rival Blacks Clash in South Africa, from Chicargo Tribune, [online], Available at articles.chicagotribune.com [Accessed: 05 March 2014]