Oscar Pistorius will return to court on Tuesday for a second day of sentencing arguments over whether he should face prison for killing his girlfriend.
On Monday, prosecutor Gerrie Nel was angered by a probation officer’s call for the South African to only serve house arrest and community service.
Mr Nel labelled the suggestion as a “shockingly inappropriate” punishment.
The athlete was found guilty of the culpable homicide of Reeva Steenkamp last month – but was cleared of murder.
Pistorius faces up to 15 years in jail, although Judge Thokozile Masipa may suspend the sentence or impose a fine.
She said the athlete had acted “negligently” when he shot his girlfriend through a toilet door, but had genuinely thought her to be an intruder.
The sentencing hearing is expected to last several days, with lawyers for Pistorius hoping they can prevent a jail sentence.
At the hearing on Monday, Joel Maringa, a prison service officer summoned by the defence, said Pistorius should perform community service and receive three years of house arrest rather than imprisonment.
“The accused will benefit from correctional supervision,” Mr Maringa said, adding that this will give him an “opportunity to restructure and modify his behaviour”.
But Mr Nel rounded on Mr Maringa, questioning whether he understood the gravity of the crime since his suggested punishment would amount to “no sentence”.
Ms Steenkamp’s father, Barry, held his head in his hands as Mr Maringa spoke, while her friends shook their heads in disbelief.