An independent inquiry into the deaths of dozens of elderly patients given "life-shortening" powerful painkillers at a Hampshire hospital will be announced by ministers within weeks.
The inquiry will address the findings of a damning audit into deaths at Gosport War Memorial Hospital published last month, a senior government figure told The Independent on Sunday.
The audit by Professor Richard Baker, a patient safety expert from the University of Leicester who also worked on the Harold Shipman inquiry, found morphine and other powerful sedatives were routinely prescribed to elderly patients in Gosport between 1988 and 2000, even if they were not in pain.
A "remarkably high" proportion of patients were given opiate injections before death, the Baker report states. The "routine" use of these powerful drugs "almost certainly shortened the lives of some patients", some of whom might have survived their illness and been "discharged from hospital alive".
Professor Baker's recommendations included investigations into individual deaths, and a study of shift patterns to ascertain whether deaths were linked to particular nurses and doctors.
Serious concerns about the liberal use of opiates among elderly patients at Gosport were first reported by nurses in 1991, but continued for another decade. Complaints from families in 1998 eventually led to three police investigations, 11 belated inquests and a professional misconduct hearing.
The Baker report was suppressed by the Department of Health for almost 10 years on the grounds that it could interfere with these proceedings. The report has reignited families' calls for an independent inquiry into the deaths and subsequent "flawed" investigations which were mired by delays.
The senior source said an inquiry should also examine confidential documents held by the police, Crown Prosecution Service, NHS and government departments, so relatives' outstanding questions and cover-up allegations could be addressed.
At least two forensic medical experts who investigated the deaths on behalf of Hampshire Police a decade ago have spoken to government officials in recent weeks.
Norman Lamb, Minister for Care and Support, who in opposition campaigned for a Shipman-style public inquiry into the Gosport deaths in this newspaper, said in a statement yesterday: "I am exploring options for how we can establish all the facts in relation to this scandal. I am deeply concerned by the findings off the Baker report." He added: "I am also conscious that a lot of documents remain unpublished. I want openness so we can establish all of the facts."
Hampshire Police were first contacted in August 1998 by Gillian Mackenzie reporting the death of her mother Gladys Richards, 91, who was prescribed morphine despite "no obvious signs of pain".
Professor Brian Livesley, an expert in elderly care called in by the police, concluded: "As a result of being given these drugs, Mrs Richards was unlawfully killed." Treasury counsel took the view that his assertions were "flawed in respect of his analysis of the law". In August 2001 the CPS said there was insufficient evidence for a successful prosecution.
The Baker "death audit" was commissioned by the Chief Medical Officer in 2002 as another police investigation – this time into 92 "suspicious" deaths at the hospital – got underway. A team of medical and forensic experts reported "serious concerns" about 15 per cent of the deaths to the police, and expected charges to be brought on the strength of the medical evidence. The CPS closed the case in 2007.
In 2009 an inquest jury found that painkillers and other sedatives were "inappropriately" prescribed to five patients which contributed to their deaths. In 2010 the General Medical Council found Dr Jane Barton, part-time clinical assistant at Gosport between 1989 and 2000, guilty of "multiple instances of serious professional misconduct". There was widespread anger when she was placed under restrictions rather than struck off. Ms Barton, who insisted she always acted in the best interest of patients, removed herself from the medical register a year later.
Mrs Mackenzie last night said: "After all these years of fighting, I would welcome an independent inquiry. Not just into the deaths, but also into how the police behaved and why crucial evidence was not permitted at the inquests, the GMC and to the CPS, so that finally we will know everything."