The by now infamous case of Connor Sparrowhawk will lead to the NHS trust involved being prosecuted.
Sparrowhawk was drowned at facilities belonging to Southern Health NHS Foundation Trust.
The organisation has provisionally accepted responsibility for his death, and has also provided compensation to his family.
Sparrowhawk had suffered an epileptic fit while in a bath at Slade House in Oxford in July 2013.
With the case having been a contentious one for some time, the Health and Safety Executive has now stepped in and indicated that it will prosecute the trust directly.
Sparrowhawk’s mother Sara Ryan told the BBC that she still felt aggrieved about what had happened to her son.
“I still feel really sad about it. I just feel we’ve been put through the mill. We have been treated appallingly and a young man should be doing whatever he would be doing right now. He should never have died.”
The Health and Safety Executive indicated that it will prosecute the trust “under Section 3 of the Health and Safety at Work etc Act 1974 following its investigation into the death of a patient under its care”.
Back in October 2015, an investigation came to the conclusion that failures by staff at the trust had contributed to the death of Connor.
This led to the bosss of Southern Health, Katrina Percy, resigning in October.
Slade House, where the tragedy occurred, closed in 2014, and the building is being transferred to Oxford Health NHS Foundation Trust.
Southern Health provides mental health services to patients across Hampshire, Dorset, Wiltshire, Oxfordshire and Buckinghamshire.
It is also facing prosecution over alleged failings at Melbury Lodge, Royal Hampshire County Hospital, where a patient sustained serious injuries during a fall from a low roof.
The prosecution will be the latest twist in a four-year process, with the result of the case possibly bringing some closure to the family of Sparrowhawk.