Right to appeal for sentence?

1) The jury was acceptable to your relative's defence. If it was not, it would have been challenged prior to the court case.

2) The Jury delivers the verdict, it is not responsible for the sentence. If the Judge disagreed with the jury, then he would still need to accept the verdict, but would have been able to reflect his views by imposing an appropriate sentence, which may or may not have included incarceration, let along for 12 years.

3) obviously the jury did not accept the assessment of the two psychiatrists to the extent it mitigated wrongful conduct or intent on the part of the accused at the time of the offence.

Your relative may have already received advice from the solicitor who was handling his original case on the likelihood of having grounds for appeal. If not, he should do so asap.

Of the three things that you list, only the third one might indicate any grounds for appeal - and that would be an appeal against conviction, and not against the sentence. You would need further evidence to support the psychiatric claim, which was not available to the jury at the original trial.

You cannot appeal because of the ethnicity or class of a jury - the selection process is by chance, so that represents the community where the trial took place.

Which country is this ?