JOHANNESBURG - The trial of the four men accused of murdering Stellenbosch student Hannah Cornelius continues on Monday.
The men also face charges of rape, robbery and abduction.
READ: Maties student's alleged murderers also charged with rape
Last week, investigating officers shed light on their evidence-collecting methods.
They told the court just how careful they are when collecting DNA samples, so as not to contaminate the crime scene and the evidence itself.
A police officer also testified about some of the accused's prison gang tattoos.