Action is being taken for the death of Mthokozisi Ntumba, a bystander killed during the Wits protest, as four cops have now been arrested.
Ntumba was allegedly shot twice by police rubber bullets while coming out of a clinic which was also the site of the student protests.
The arrested individuals will appear in court on Wednesday.
The spokesperson for the Independent Policing Investigative Directorate (IPID) said:
IPID has been working around the clock doing the investigative work and as a result of that, this afternoon IPID has indeed arrested four police officers that are from the Public Order Policing Unit and this police officers are facing various charges.
Those charges include murder, three counts of attempted murder and defeating the ends of justice.
IPID is said to have gained evidence to support their case, including eyewitness accounts of what happened.
Videos of the incident have also circulated on social media. This footage was important.
"Based on the co-operation we've been getting and the evidence which has been available to us as well as the technical reports that were done on Friday, IPID was able to come to the conclusion which was approved by the prosecutor that we can go ahead and arrest the four police officers"
Students are calling for a national shutdown from Monday until their demands are met.
Demands include students being allowed to register even with historic debt, for historic debt to be wiped and free education for poor and missing middle students.
This all began when Wits students took to the streets for the University to allow all students to register.