However, she stressed that the biggest "challenge" would be ensuring the "safety of witnesses and their ability to present their testimony."
"That is going to be another and more complicated matter. So, for example, some of the main currently available witnesses will be doctors, journalists, humanitarian workers. But we know, for example, that many journalists have been killed and even possibly directly targeted," she added.
Noting that testimonies could also be submitted directly to the case online, Susan said technology "may well help to make witness statements more available."
South Africa asks Israel to take 'effective measures' to ensure preservation of evidence related to allegations of genocidal act.