I would be all for it if it were carried out consistently: same standards for everyone.
That means that if someone who got executed was later found to be innocent, all those responsible would get prosecuted for kidnapping and premeditated murder. Politicians, judge, jury, police, voters, etc.
And, of course, "we thought he was guilty" isn't an acceptable defense - just like "I accidentally killed the wrong guy" isn't a defense in any other murder case.
I think they should have a referendum on it. People get to vote on whether they want the death penalty to be used or not, and if they vote in favor, then they will be held responsible the moment it is found out that an innocent person got executed.
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