So it wasnt about the real-life 'criminal justice' system after all.
I thought this was hyped as commentary on, and perhaps even an indictment of, the way crime and punishment is handled in noughties Britain.
The Beeb was certainly happy to garner all the hype of police, prison service and lawyers lining up to say "it aint really like that".
The first four episodes did seem to tread a path of realism. Obviously, the police were gonna suspect him and charge him. Obviously, his lawyers were gonna be convinced of his guilt, but do their best to get an acquittal or a plea bargain. And obviously there is some degree of corruption in prison (although I think there was some exageration), and obviously new prisoners get bullied.
But they didnt have the courage to see the realism through to the end. We could have been left with an innocent man doing life. Or we could have found out that he was the murderer after all. Either of which would have done the job of showing what the criminal justice system is "really" like.
Instead, we got a 5th episode full of far-fetched melodrama. Characters suddenly started acting contrary to type for no specific reason.
Barristers dont (and probably can't) carry on working on cases once the terms of their brief are fulfilled. They certainly don't suddenly become detectives and crack unsolved murders.
I can just about buy Hooch being willing to sacrifice himself. I can even buy the idea of him forcing the info out of Freddy Graham. But there's no explanation of how he then escaped Graham long enough to write the note.
And it was just a bit too damn convenient that: clear evidence of Ben's innocence just happened to exist; the guilty police officer didnt erase the CCTV; no-one else recognised the female murder victim running from the scene of the dealer's murder; the man with the key to linking the 2 murders just happened to be in the same prison as Ben.
The first 4 episodes were heavywight TV. By opting for a happy ending (well the happiest that could be expected in the circs), I think the writers lost an opportunity to make this a truly brilliant series, as opposed to a fairly good one.