The conviction
1952: prosecuted for "gross indecency" for a relationship with a man.
the wrong
The punishment
Chemical castration by hormones; loss of his security clearance.
the cost
The death
1954, cyanide, age 41 — ruled suicide, though the cause is debated.
the loss
The reckoning
Apology (2009), royal pardon (2013), Turing's Law (2017), the £50 note.
too late
01Convicted of being himself
In 1952 Turing was prosecuted for "gross indecency" after a consensual relationship with another man — then a crime in Britain.
charge homosexual acts, illegal until 1967
so a private life was treated as a criminal one.
+1 it surfaced because he reported a burglary — he went to the police as a victim and was charged himself.
02"Chemical castration"
To avoid prison he accepted hormone injections meant to suppress his libido.
effect physical changes, including gynaecomastia
so the state altered his body as punishment.
+1 mathematician Barry Cooper called it plainly: "you invade his body with hormones… a national failure."
03Stripped of his work
His conviction cost him his security clearance, ending his secret government work.
loss clearance revoked; ongoing surveillance
so the man who'd helped win the war was cast out of it.
+1 he kept doing original science (morphogenesis) through it all — his mind never stopped, even under pressure.
04Dead at 41
On 7 June 1954 he was found dead at home from cyanide poisoning.
inquest ruled suicide; a half-eaten apple nearby
so one of the century's great minds was lost far too young.
+1 how he died is genuinely debated — the footer below lays out both views honestly.
05The secret lifted
Only as Bletchley's work was declassified (1970s–90s) did the public learn what he'd done.
so his war role emerged decades after his death
then the injustice of his treatment grew unmistakable.
+1 he never received public credit in his lifetime — the recognition is entirely posthumous.
06The Turing Award
Computing's highest honour has carried his name since 1966 — its "Nobel Prize."
since 1966, awarded annually
so the field he founded honours him at its summit.
+1 it was named for him while his persecution was still largely unknown — the science spoke first.
07Apology and pardon
In 2009 the Prime Minister apologised; in 2013 the Queen granted a posthumous pardon.
2009 Gordon Brown · 2013 royal pardon
so the state formally admitted the wrong.
+1 his family argued a pardon for him alone wasn't enough — justice had to reach all who were convicted.
08"Turing's Law" and the £50
A 2017 law pardoned thousands convicted under the old statutes; in 2021 his face went on the £50 note.
2017 Turing's Law · 2021 Bank of England note
so his name now anchors a broader justice and national honour.
+1 ~65,000 men were convicted under those laws; ~15,000 were still alive when the pardons came.
enihundua series · book no. 3 · he gave the century its machine, and it broke him · honoured, at last, too late