To be an expert witness is not only to be an authority in a specialised field, but to be able to convey the nuances of that area of expertise in a way that a court and legal counsel can understand. Many legal matters rely on an expert’s ability to do so accurately and impartially, making their input crucial to the pursuit of justice. In this month’s edition, we hear from Dr François Sestier on the calculation of life expectancy and how a startling number of legal experts do so wrongly. He outlines his own favoured methodology and explains why it is critically important that life expectancy professionals change the way they perform their calculations. EXPERT WITNESS
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