Steve Shaw:
The judge may overrule a jury's verdict, but this hardly ever happens. A not guilty verdict by a jury can't be challenged by the prosecution or by anyone else. A guilty verdict may be challenged by the convicted party and taken to appeal. If it's felt by the judge that there's been a mistrial, well that's different. That has not happened in this case. You or I may "review" a verdict, Nigel, but no-one has the power to intervene to change that verdict.
Surely if as you say "a judge may feel there's been a mistrial" then yes, there may be need for reconsideration.

I am just arguing against all those who claim that, come what may, the decision must stand.