South African police handcuffed a taxi driver to the back door of their van and dragged him along the road in Johannesburg last week.
Mido Macia later died in a police cell from head injuries and internal bleeding.
Eight officers have been arrested for murder after a bystander filmed the incident on their mobile phone.
The footage led to shock and anger across the world.
Unions have called a general strike
Interview with a member of French revolutionary socialist group Autonomie de Classe
The real violence is coming from the racist thugs in uniforms
