"Yes UK prison cells are the same."

So 1977 is today? (personally when making that argument I'd use the Boers genocide by the British in the prison system, would have more impact). The dungeons of 1244 France are the same as the prison system in France today? The German prison system today is the same as in 1944? What kind of physics theory of time equivalence is that?

Did the UK torture prisoners. Sure. Should someone go to jail for this. Sure. Is todays UK prison system the same as Russias Gulag? No.