Overall, my position is unchanged in as much as I don't think the prison term itself should be inflicting additional, and continuing punishment. The fact they are locked up IS the punishment. I wouldn't regard co-operating in tests to learn more is a cruel punishment. I'd consider it more a job.. more community service.
But putting them in prison currently is simply removing them from the street.
They are not "locked up" as you put it.
They continue to enjoy access to music, television, gym facilities, team sports, even a university education.
I'm not advocating torture, death, withdrawal of healthcare or nutrition; I am simply suggesting that being locked up should mean just that.....locked away. In a cell. Alone. No radio, no TV, no twice weekly movie nights.
Carry out a crime...any crime...and your punishment will be complete loss of liberty and all the social niceties that go along with that.
And yes I mean any crime. The punishment would be the same. The only thing that would differ would be the length of the sentence.
In an ideal world perhaps things could be learned from these people, but ultimately it would be a hugely expensive and pointless exercise. I believe on a voluntary basis you would have a 0% uptake, and if compulsory you would at best have research based on the lies of people whose lives are based on such, and at worse a long list of pending court cases based on the breaching of "human rights".
A prison sentence should continue to be a
punishment until the day of release IMO, and should not end as soon as the gate close upon admittance.