Joe, it's about time that you realised that stats alone don't tell the story and they can be manipulated to suit ... Any statistician will admit this.Well you explain why the non death penalty states have a HUGELY lower murder rate than those that do (he won't)
What the stats in the US (for example) don't tell us is the demographic of the states with and without the death penalty i.e. the context to the information.
Without this context statistics are absolutely useless.
I'll give you an example. Each year when the DOH cardiac stats are produced my local hospital gets castigated by the press because the figures always show a high rate of atrial fibrillation post cardiac surgery in comparison to peer hospitals. When you get behind the figures, however, it transpires that the hospital simply has a better coding department who routinely code such common symptoms whereas other hospitals don't.
With any set of figures we need the rationale behind their production i.e. the context because, without this, they are simply meaningless numbers.
To conclude that murder rates would drop if the death penalty were removed from states which currently have it simply because the figures show a lower incidence of murder in states without the death penalty is an invalid assertion.
MW