And you take personal responsibility if someone innocent is convicted? Once you have executed someone there is no coming back. Or are you saying you're OK with some innocents being killed so you can save some money (taxes)?
It takes 5-25 years is the USA to execute a person. Someone can argue what is worse: to live 20 more years in prison or to be executed.
>Once you have executed someone there is no coming back.
Once you've taken 10 years of someone's life there is no giving that back either. As technology progresses the cost of recording evidence will go down which will help convict and prove the innocence of people.