Barristers Jeremy Dein and Sasha Wass look back at their investigation into the secret poisoning of a man by his wife in 1930s Lincolnshire, exposed by an anonymous note. Show more
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Barristers Jeremy Dein and Sasha Wass look back at their investigation into the secret poisoning of a man by his wife in 1930s Lincolnshire, exposed by an anonymous note. Show more
BBC One
