Channel 4 describe the programme "Series that captures the work of police, probation, prison, prosecution and parole".

Here's a link to the first episode: https://www.channel4.com/programmes/crime-and-punishment/on-demand/64655-001

Crime and punishment is a documentary series that looks inside prison to tell the stories of the criminal justice system from the viewpoint of those involved.

The first episode spends some time talking about the unjust "Imprisonment for Public Protection"[1] sentences (these are no longer given by the courts but there are thousands of prisoners still imprisoned on them), how they went wrong, and the awful effect they have upon prisoners. It's a difficult watch. It shows how severely the mental health of prisoners is when they're on this type of sentence, including their serious self harm.

Episode two talks about pressure inside prisons and how that results in "riots", about how prisoners use the only power they have available to them.

I like the programme because it avoids judgmentalism. The prisoners are not reduced to the bad guys; the officers are not simplified to the good guys. You hear a little bit about some of the offences committed by the prisoners

Here's a Twitter thread from someone working in the English NHS. She works in forensic services as a psychologist. https://twitter.com/SarahE_Davidson/status/1173707912981700608

I guess Channel 4 On Demand have geo-blocking. I don't know if it's available on other services, or on torrent.

[1] https://en.wikipedia.org/wiki/Imprisonment_for_public_protection