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The flaws in evidence on both sides of Lucy Letby case

How the case of one baby death shows flaws in the medical evidence on both sides.

When it comes to the Lucy Letby case, there are two parallel universes. In one, the question of her guilt is settled. She is a monster who murdered seven babies and attempted to murder seven more while she was a nurse at the Countess of Chester Hospital between 2015 and 2016.

In the other universe, Letby is the victim of a flawed criminal justice system in which unreliable medical evidence was used to condemn and imprison an innocent woman.

This is what Letby's barrister Mark McDonald argues. He says he has the backing of a panel of the best experts in the world who say there is no evidence any babies were deliberately harmed.

These extremes are both disturbing and bewildering. One of them is wrong - but which? Who should we believe?

For ÃÛÑ¿´«Ã½ Panorama, Jonathan Coffey and Judith Moritz look at both sides of the case.

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16 minutes