The Jolly Contrarian

The Jolly Contrarian on Crime and Punishment

Science EN ↓ 15 episodes

Crime, criminal justice, and our systems of compliance jollycontrarian.substack.com

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The Jolly Contrarian

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Science

Latest episode

Jun 8, 2026

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Episodes

Before you accuse me— 08.06.2026

Now is the worrying time—Woe! Woe! Behold! Armageddon and the four horsemen of the apocalypse:Famine, Pestilence, Death—And the other one. … Sometimes, you know, God can be so unimaginative. The Young Ones, Interesting (1982) There has recently been a bit of conflab amongst those challenging Lucy Letby’s convictions about the motivations of the “gang of four”: did the COCH paediatricians really be...

Lucy Letby: waiving, or drowning? 26.01.2026

From all that terror teaches,From lies of tongue and pen,From all the easy speechesThat comfort cruel men,From sale and profanationOf honour and the sword,From sleep and from damnation,Deliver us, good Lord! G. K. Chesterton , O God of Earth and Altar A mystery persists. What is it about this waiver of privilege that so fixates everyone? It is plain, under current rules, Ms. Letby must waive privi...

Juries, proof and the appalling vista 11.10.2025

Trigger warning : this newsletter assumes readers are of sufficient maturity to understand and not be wounded by cultural references to cocaine, Starsky & Hutch, and physical money made out of paper. Also: these events happened a long time ago. My recollection is imperfect, and I have definitely changed and embellished the narrative to make it a good story. Dirty banknotes She don’t lieShe don’t l...

Lucy Letby: you had to be there 29.08.2025

The investigation into the actions of Lucy Letby, the trial process and medical experts continues to face scrutiny and criticism, much of it ill-informed and based on a very partial knowledge of the facts and totality of evidence presented at court and at the Court of Appeal. This case has been rigorously and fairly tested through two juries and subsequently scrutinised by two sets of appeal court...

Waiver of privilege 28.07.2025

This is a follow on piece from Lucy Letby: waiver of privilege? It is mainly about waiver in a criminal context. The rules around waiver are more developed in the civil cases, since waiving privilege there is not quite as catastrophic to life, liberty and freedom, so it does happen. A document or communication is “once privileged, always privileged”. The principle that a client should be free to c...

Lucy Letby — the judge’s direction 21.07.2025

In his summing up, Mr Justice Goss instructed the jury that they did not need to be sure precisely how Ms. Letby murdered the infants, as long as they were sure she did : “If you are sure that someone on the unit was deliberately harming a baby or babies you do not have to be sure of the precise harmful act or acts; in some instances there may have been more than one. To find the defendant guilty,...

Lucy Letby: confirmation bias 09.07.2025

Take the following hypothetical scene, which describes Lucy Letby’s experience at the Countess of Chester Hospital: Internal investigation A hospital experiences a cluster of deaths and collapses materially in excess of its usual rates for such events. Staff notice a particular nurse was present during an abnormal proportion of the collapses. Concerned at the possibility of foul play, hospital man...

Lucy Letby and behavioural profiling 13.06.2025

A leopard goes to the doctor.“Doc,” he says, “You gotta help me. Whenever I look at my wife, I see spots.”The doctor looks at him for a minute and says, “Well, what do you expect? You’re a leopard.”“I know that, Doc. But I’m married to a zebra.” Healthcare serial murder enquiries are unusual in that they generally start without specific evidence of wrongdoing as such. Suspicion generally arises fr...

Lucy Letby: The ludic fallacy 21.05.2025

In his book The Black Swan , Nassim Nicholas Taleb presents the “ ludic fallacy ”: the mistake of applying unvarnished theoretical probabilities to real-world scenarios. Thanks for reading! This post is public so feel free to share it. Here is his example: You have a fair coin which, on the last 99 flips, had come up “heads”. Assuming it is a fair coin, what is the probability of it coming up “hea...

Lucy Letby: how the charges were selected 09.05.2025

Prelude: A daycare centre in New Zealand P eter Ellis was a childcare worker in Christchurch, New Zealand. A creative, flamboyant and somewhat uninhibited character, Ellis loved his job, put a lot of energy into programme planning, and would entertain children with elaborate puppet shows and somewhat provocative productions, sometimes to the point of being “risqué and outrageous”. Ellis had worked...

Lucy Letby: strikingly similar? 05.05.2025

Show me a man who believes in conspiracy theories and I’ll show you someone who has never organised a surprise party. —Lee Harvey Oswald. The constant presence Ordinarily, when a defendant appears on 22 counts of things like murder, there is a wealth of compelling evidence: eyewitnesses, fingerprints, incriminating forensics and related corroborations that point not just to murder, but to the defe...

Lucy Letby: the insulin smoking gun 06.04.2025

The test results showing that insulin had been given to them was the only piece of concrete evidence of criminality throughout the whole of the prosecution’s case. It was the closest thing they had to a smoking gun and became the keystone for their case as a whole. Johnson’s argument ran that if the jury could agree that Letby had deliberately poisoned two babies, they could also reasonably conclu...

Lucy Letby: The Handover Notes 04.04.2025

“Lucy Letby Conspiracy Theorists are Wrong”, Liz Hull, Daily Mail , July 5, 2024 . R v Letby, Court of Appeal Judgment, 2 July 2024 . Rachel Aviv’s, New Yorker investigation of 13 May 2024 . Lucy Letby: initials of babies noted in diary on dates of alleged attacks, court told , The Guardian , 17 April 2023. This is a public episode. If you'd like to discuss this with other subscribers or get acces...

Lucy Letby 21.09.2024

Serial murderers of any kind are vanishingly rare in Britain. Wikipedia lists fifty-five, since 1600. But so are miscarriages of justice. Wikipedia lists fifty-four, since 1255. Both narratives are highly improbable. Of all the explanations we might offer for the unusual spike of incidents in 2015 and 2016, as a matter of “prior probabilities” they are the least plausible: all else being equal, it...

Prosecutor’s tunnel vision 16.09.2024

The collection of biases and cognitive gin-traps that can lead prosecutors — those who “prosecute” a particular theory of the world — to stick with it, however starkly it may vary from available evidence and common sense. So named because it is often literal prosecutors, of crimes, who suffer from it. This kind of tunnel vision has led to notorious miscarriages of justice where innocent people com...

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