Watching BBC's Death Row last night (Crisis Stage, series 1 episode 3), there was a lawyer there who had been involved in many, many cases of trying to get death sentences commuted to life imprisonment without parole, prisoners are all inside for the most serious of crimes involving loss of life/murder.
Attempts to refute cases usually involves 3 aspects: questioning the investigation of the case (strength of evidence), checking if legal procedure/the law were correctly followed and checking that the jury were fully aware of any mitigating circumstances in the convicted person's life which may have led them to a different sentencing outcome (or indeed verdict on guilt).
He said a common question he was asked was 'What do you think about your clients who claim they are innocent? Do you believe them?' His answer almost all of the time is 'I don't know. I wasn't there.' Professor David Dow
https://www.bbc.co.uk/iplayer/episode/b03zndw4/life-and-death-row-series-1-3-crisis-stage?seriesId=b071jy7p-structural-1-b03ytxmh 30 mins 30s but bear in mind the trigger warning as straight after he speaks there are crime scene pictures.
He just has to rely on the strength of the physical and circumstantial evidence to support/refute claims of innocence or guilt.
Doubtless, if this was the US (at least in the states that have capital punishment), LL would be on Death Row. So I though it was very sobering to remember this - particularly where there seemed to be little scrutiny of the prosecution evidence and a paltry defence at her trial.
Now, I don't know whether she is guilty or not. But it does seem that there are serious questions to be asked about how robust the evidence is, and whether there is any other compelling evidence which may throw doubt on the veracity of her conviction.
I think we just have to hope that justice (whatever the outcome) is properly served in this case. It's too important to all concerned for it not to be.
It's a question of trying to get to the truth, whatever we believe about LL, or whether or not we think she's 'likeable'. It's the truth that counts.