The fight began during a short adjournment as the accused were sitting casually after one of wardens tried to get the men to change the way they were sitting.
A Car Track executive was given precise dates to compile a report on GPS data after two of the defendants claimed to have been assaulted by police several at stations to force them to confess.
The defence in the Senzo Meyiwa trial has told the court that one of the places where one of the accused was assaulted has since been developed into a shopping complex and does not show on GPS.