> The commissioner was found guilty, and his office was fined.

I'm sure they also gave him a stern talking-to

The officer in charge, Cressida Dick, was given a slap on the wrist. She was later appointed head of Scotland Yard, where she was a signal failure. The Mayor of London, fed up with her equivocations on malfeasance, corruption and abuses in her force, pushed her out, and was criticized for this by the chief Inspector of constabulary. After all, she was a good old girl from the right family who went to the right school and the Establishment protects its own.

There has never been any occurrence of accountability for criminality, malfeasance or gross negligence in the UK for at least 100 years (Aberfan Disaster, Hillsborough, Bloody Sunday, Grenfell, Iraq, Afghanistan, the list goes on).