Marianne Tiemensman, the head of the forensic unit at Victoria Hospital and police fingerprint specialist Jonathan Oliphant, were called as State witnesses in the Western Cape High Court.
They testified in the triple murder trial, where Henri, 22, is accused of murdering his mother Teresa, his father Martin and his brother Rudi.
Henri also stands accused of the attempted murder of his sister Marli who has subsequently suffered from retrograde amnesia following severe head injuries.
He claims an intruder attacked his family at their De Zalze home in Stellenbosch in January 2015.
Tiemensman, an expert with close to 10 years experience, testified that in her opinion, apart from his face, back and right leg, Henri’s other injuries could have been self-inflicted.
“The stab wounds could have been self-inflicted, they were superficial and not fatal.
“It is unlikely the victim was attacked because there are no defense wounds,” Tiemensman said.
Henri van Breda's medical report. CREDIT: Supplied
The injuries were also even and nowhere near fatal areas on his body.
But she conceded wounds to the accused’s head, back and leg were unlikely to have been self-inflicted and could have resulted from blunt force.
On the fingerprints, Oliphant testified that there was no evidence found of activity outside the Van Breda home.
The defence said there were fingerprints found on the scene which were not identified, to which Oliphant agreed.