Samuel Roy Meadow is a former British paediatrician best known for his 1977 academic paper on Munchausen Syndrome by Proxy (MSbP), in which parents are said to fabricate their child's illness, and his dictum that "“one sudden infant death is a tragedy, two is suspicious and three is murder, until proved otherwise“", which became known as Meadow's Law. Wikipedia
He devised the much disputed "Meadow's law" on cot deaths, which stated that "one in a family is a tragedy, two is suspicious and three is murder". society.guardian.co.uk/nhsperformance/story/0,8150,146973...
That evidence was given by an expert witness of great distinction, if not pre-eminence in this field, Professor Sir Roy Meadow, whose evidence would undoubtedly have carried great weight with the jury which tried Sally Clark. www.bailii.org/ew/cases/EWCA/Crim/2004/1.html
The definitive Wikipedia entry for Roy Meadow. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Roy_Meadow