Roy Meadow, emeritus professor of paediatrics and
child health.
Leeds LS17
Sally Clark, a 34 year old mother, was convicted in 1999 of the murder of her
two sons Christopher, who died at the age of11 weeks in December
1996, and Harry, who died at the age of 8weeks in January 1998. Both
the children had been previously healthy;they died suddenly in her
care, in the evening, at home. Postmortemexaminations of both
children showed multiple abnormalfindings.
After the verdict, the media reported the family's claim that both children
had "died of cot death" and that incorrect statisticalevidence given
at the trial had greatly underestimated the likelihoodof recurrence
of cot death. The BMJ published an editorial asdeficient in
its sources as it was sensational in its title.1It was called "Conviction by mathematical error?" and it ignoredthe fact that at the trial neither the defence nor any of the
expert witnesses advanced the claim that the children's deathswere
examples of sudden infant death syndrome. The risk of recurrent
sudden infant death syndrome was irrelevant to the conviction.
Summary points
Sally Clark appealed against her conviction for murdering
her two infant sons
Her appeal was partly based on a claim that misleading
evidence was given about the likelihood of two cases of sudden
infant death syndrome occurring in the same family
The BMJ published an editorial questioning the
statistic and therefore the conviction
None of the medical experts believed the two boys' deaths
were examples of sudden infant death syndrome
Statistics about the syndrome were therefore irrelevant to
the case
The appeal court upheld the conviction
What was the evidence?
The trial, at Chester Crown Court, was long, and the fact that both parents
were solicitors led to more publicity than usual.Many medical
experts were called by both prosecution and defence,including eight
pathologists with Home Office, forensic, paediatric,ophthalmic, and
neurological expertise. There were many days ofpathological
evidence. Opinion differed about the extent, nature,and cause of the
unusual findings identified on the dead infantsforexample, the
exact number of petechial haemorrhages on the face,the location of
bruises, the cause of the torn and bruised frenulum,the degree of
haemorrhage at the back of the eye, whether thespinal cord had been
damaged at more than one level, the timingof the old rib fracture,
the likelihood of the recent rib dislocationbeing caused by
resuscitation, the proportion of alveoli showingevidence of previous
bleeding into the lungs, and the exact timingof the hypoxic damage
identified in the brain. This heavy morphologicalevidence was
supplemented by that from experts seeking, and failingto find,
natural conditions, disorders, or events that could accountfor these
abnormalities, which are generally associated withtrauma.
At the end of the trial none of the pathologists or clinicians had described
or classified the death of either child as anexample of sudden
infant death syndrome. Several attributed thefindings to physical
abuse, with smothering and shaking as theprobable causes ofdeath.
Misleading BMJ editorial
The BMJ editorial, which suggested that "the conviction is unsafe,"
did not cite from the trial. The writer did not seem toknow the
substantive issues of Mrs Clark's trial but instead reliedon
newspaper reports. The editorial was circulated and publicisedby the
family as indicating miscarriage of justice.
The headline was irresponsible because it was unrelated to the facts of the
case. There had been days of detailed pathologicalevidence, clinical
opinions, and clinical discussion but onlya few minutes of
statistical discussion that had come relativelyearly in the trial.
At the committal proceedings five months beforethe trial, at which
medical evidence for the defence was not submitted,I referred to the
frequency with which physical abuse recurredwithin families compared
with the rarity of recurrence of suddeninfant death syndrome. At the
full trial, the detailed informationconcerning the likelihood of
sudden infant death syndrome in successivechildren came from the
recently published book reporting the resultsof the confidential
inquiry into sudden unexpected deaths in infancy.2The court had been provided with pages 91 and 92 of that book,
which states that for a family in which the mother is over theage of
27, does not smoke, and has a waged income, "the risk oftwo infants
dying as SIDS by chance alone will thus be one in(8543×8543), i.e.
approximately 1:73 million." I had been askedto provide thetext.
I testified that in my opinion neither child's death was an example of sudden
infant death syndrome. As it quickly becameclear that none of the
other clinical or pathological expertsbelieved that the deaths were
examples of sudden infant deathsyndrome, discussion of its
recurrence rate was irrelevant. Inthe judge's final summing up,
which extended to about 170 pages,there were only a few paragraphs
about statistics. In these thejudge advised the jury to treat the
statistics with caution.3
Grounds of appeal
An appeal against the conviction was launched on five grounds, two of which
concerned medical evidence. The first relatedto the eye
haemorrhages, which five ophthalmic pathologists weresummoned to
review. The opinion of the appeal court was that theexpert review
strengthened the evidence concerning the extentand nature of the
haemorrhages.4
The other medical ground for appeal related to misinformation concerning the
statistical probability of two deaths from suddeninfant death
syndrome in one family. The appeal judges acceptedthat statistics
relating to cot death had been handled inappropriately.They stated
that "Professor Meadow did not misuse the figure inhis evidence,
though he did not help to explain their limitedsignificance."5 They noted that there had been little questioningof experts about recurrence rates of sudden infant death syndromebecause none of the experts considered that either child's deathwas an example of the syndrome. The appeal court judges concludedthat "In the context of the trial as a whole, the point on statisticswas of minimal significance and there is no possibility of the
jury having been misled so as to reach verdicts that they mightnot
otherwise have reached."6
After considering the two medical and the three non-medical grounds for
appeal, the judges unanimously dismissed the appealand gave eight
reasons why they concluded "that the evidence wasoverwhelming." Two
of those reasons were that "in each case therewas evidence of
previous abuse," and "in each case there was evidenceof deliberate
injury recently inflicted."7
The family will continue to fight their corner. Some journalists will
continue to support them, and very few journalists reportingthis
case, or the subsequent appeal, have mentioned that bothchildren
showed signs of both recent and past abuse, or that noneof the
medical experts considered that they had died of cot death.In
today's world it is inevitable that, despite the appeal judges'
finding that both Mr and Mrs Clark gave untrue evidence, formal
letters of complaint from the family to the Police Complaints
Authority, the General Medical Council, the royal colleges, orother
statutory bodies will be treated with respect and will consume
considerableresources.
Balance and accuracy
What part did the BMJ play? There will be different opinions. My main
concern is that the BMJ did not check the facts andverify the
issues of the Clark case before using the title "Convictionby
mathematical error?" The three appeal court judges pointedout the
fallacy of opinions based on newspaper reports where "wedo not know
what the reporter heard, nor what he understood."8Although the BMJ published an editorial suggesting a miscarriageof justice, it did not subsequently publish the fact that the
Court of Appeal pronounced the evidence for murderoverwhelming.
All doctors recognise the conundrum of the BMJ's relationship with the
medical profession. The BMA is a prestigious representativeand
respected professional organisation. The BMJ is its journal.
Inevitably, those outside medicine believe that the BMJ representsthe British medical establishment; and they probably pay more
attention to its leading articles than do medical readers whoare
attuned to its idiosyncrasies. Yet at a time when the restof the
media are so fast to criticise doctors, diminish theirwork, and
point to their failings, there is an increased needfor the BMJ
to be scrupulous in checking the facts and to be preparedto speak
out on behalf of doctors who, in difficult and unsupported
circumstances, commit themselves to unpopular areas ofwork.
Recently the BMJ has published, alongside thoughtful letters from
experienced scientists and clinicians, letters from themad, the bad,
and the misinformed. Presumably that has been done"to achieve
balance." But the appearance of balance is not thesame as balance
itself. When the rest of the media are reportingpreferential
information against doctors, the best way for theBMJ to
achieve balance is to respect the facts and present themedical case
clearly andaccurately.
Footnotes
Competing interests: RM was an expert witness for the
prosecution.
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