I wonder whether the high profile nature of the case also has a bearing on the defendant not attending, the media scrum will be a million times higher than it would be for 99.9% of cases. Indeed in some cases it might actually suit the authorities for the defendant not to be taken to the court...
Bad ideas are bad ideas regardless of who implements them. This would be just as bad an idea if a Labour government were doing it.
Why are you so desperate to drag politics into it?