The case also highlighted shortcomings in the way deaths are recorded and investigated by coroners.
King's College carried out tests on behalf of police forces and coroners for many years.
The Ministry of Justice is making changes to the coroner system under the Coroners Act 1988.
The inquest at Hull Coroners' Court heard that Pte Stone collapsed after being shot through the cheek.
But there is no mandatory retirement age for coroners, and only the Lord Chancellor's office can dismiss one.
BBC: Call for coroner to resign over Teesside inquest delays
As the law stands, coroners in England and Wales must call an inquest into violent, unnatural or unexplained deaths.
One Money Box listener has been campaigning for coroners to provide better information.
The inquest at Wakefield Coroners Court heard Terry Webb probably started the fire to appear heroic by rescuing her.
The change to the Coroners Act is part of a series of reforms.
Ministers said existing provisions in the Coroners Bill were adequate to cover the supply of coroners for military inquests.
South Shropshire Coroners' Court heard that Ms Davies went to Ludlow Community Hospital twice in February 2009 for heart traces.
Some coroners may also give short-form verdicts in the belief that this avoids adding to a family's distress, Prof Gunnell suggests.
Since 2003, Labour has repeatedly tried to remove the role of juries in fraud trials, coroners' inquests and other criminal trials.
Not all of them were coroners' post mortem examinations - some were carried out by Alder Hey with no coroner's involvement.
"Furthermore... suicide rates may (falsely) seem to decline in areas served by coroners who make most use of such verdicts, " they add.
We are working with coroners, and others concerned, to resolve these issues.
Andre Rebello, of the Coroners' Society of England and Wales, said the society was "well aware of the ONS problem in codifying deaths".
The day's testimony concluded with a detective who interviewed people wounded in the attack and the two coroners who conducted the 12 autopsies.
He promised the Ministry of Defence would continue to work with coroners and families to ensure inquests are "as effective and valuable as possible".
The fresh Hillsborough inquest could be held anywhere in England and Wales as coroners are no longer restricted to holding inquests in their districts.
Coroners will now investigate whether poisonous substances are present in the remains of Turkey's eighth president, who died while still in office in 1993.
Coroners presiding over military inquests have developed specialist knowledge through the conflicts in Afghanistan and Iraq and this must be retained, its supporters said.
But they were defeated by 99 to 84 votes on the issue, voted on during a debate on the government's Coroners and Justice Bill.
He said the views of the families had been sought before filing the application, with the coroners for South Yorkshire and West Yorkshire also contacted.
BBC: Bid for new Hillsborough inquests made by attorney general
St Pancras Coroners' Court heard on Thursday an out-of-hours doctor had booked Axel into a routine appointment when it should have been flagged up as urgent.
While coroners must be sure of intent to be able to record suicide verdicts, statisticians use less stringent criteria to identify when someone has killed themself.
Christine Lord, whose son died nearly two years ago of vCJD, urged coroners to carry out the tests as it had the potential to "save lives".
Earlier this year Lord Falconer and others proposed an amendment to the Coroners and Justice Bill that would have legalised assisting suicide overseas in cases of terminal illness.
The decision to go ahead with the luge competition on Saturday was taken after probes by the Coroners Service of British Colombia and the International Luge Federation (FIL).
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