So I take it that you are arguing that the ends justify the means.
It was not my argument, but a question that you and ViaCrucis dodge, do you think it better for one innocent to die to save many? You ignore the deaths of many "innocent" at the hands of criminals.
John 11:50 You do not realize that it is better for you that one man die for the people than that the whole nation perish.”
As to the argument of the end justifies the means, you use the same rational to take away guns in your country. All secular decisions weigh the cost of a law with the fruit of a law. It is only a matter of extremes that one quotes "the end justifies the means".
The Washington Times speaks differently
A liberal WAPO quotes a liberal study that matches what your country thinks. Your "proof" article quotes one that also says prisons do not deter crime. So I guess you should be arguing to abolish prisons also. When common sense goes out the door, there is no end to rationalization.
the state sanctioned execution of an innocent person should fill us all with alarm.
Micah 6:8
He has told you, O mortal, what is good;
and what does the Lord require of you
but to do justice, and to love kindness,
and to walk humbly with your God?
I have argued and you ignore that the rules of the state are different than religious rules. You quote a religious law that should be followed by the religious.
Do you think religious laws should be used as secular laws?
Do you want to live where muslims apply their religious laws to all?
And if you wish to quote the OT, there is scripture where enemies of God and his people are punished/killed.
Let me be clear, The Lord gives, and the Lord takes away. When we take away through the offices of the state, we need to be sure that the state gets it right, because there is no going back, and if justice in not done, which it is not when an innocent person is executed, then we have failed. I don't feel these moral precepts are culture bound, and they apply in Australia as much as they apply in the US. I am not holding us up as a shining example, we have more than our fair share of things where justice is not truly being served.
The failure of justice in the state is to be expected as you admit.
One failure of justice does not invalidate the state to be a failure. The use of one failure to rationalize changing the state is destined to failure.
Extreme caution would set the speed limit to 20, then no one would die unjustly. Extreme caution would make all cars a mobile fortress, we would all drive big gas hog big trucks. Extreme caution would ban alcohol because so many die from it. Extreme caution would ban drugs because many die from them.... The laws nations develop are all compromises between control and liberty. Scripture never teaches this fallen world can be made perfect/just.