The 33-year-old faces extradition to South Africa over murder charges involving his Swedish-born Indian wife Anni in November 2010.
Dr Ian Cumming, a prison psychiatrist and one of the key expert witnesses in the case, told Westminster Magistrates' Court on the second day of a five-day hearing today that Dewani would receive proper mental health care if extradited.
He said he had been reassured by the authorities there that Dewani would be admitted to a general ward at Valkenberg Hospital in Cape Town - and not to a clinical unit where people are usually sent by the courts.
Dewani, is currently receiving treatment for post-traumatic stress disorder (PTSD) at a hospital near Bristol and has been excused from appearing in court.
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Dr Cumming told the court that aside from time spent at the hospital and inside a camper van in the car park, he is also allowed home visits.
Dewani faces charges of murder, conspiracy to commit murder, robbery with aggravating circumstances and obstructing the administration of justice - all of which he denies.
His lawyers have previously claimed that he would be a high suicide risk if extradited and that his human rights could be violated, due to the risk of attack and sexual assault in a South African prison.
The court also heard that while he may still suffer from poor memory and an inability to concentrate, he no longer makes references to suicide.
Anni Dewani was shot when a taxi in which the couple were travelling was hijacked in Gugulethu, near Cape Town.
Shrien and driver Zola Tongo were ejected from the car before Anni was driven away and killed.
In 2012, Xolile Mngeni was convicted of premeditated murder for shooting her.
Prosecutors claimed that Mngeni was a hitman hired by Dewani to kill his wife, which Dewani has consistently denied.
Another accomplice, Mziwamadoda Qwabe, also pleaded guilty to charges over the murder and was handed a 25-year prison sentence.
Both Tongo and Qwabe have claimed Dewani was involved in planning the murder.