I believe it might be acceptable for certain crimes but with the possibility of a wrong conviction it should only be allowed when the accused has been proven "guilty beyond reasonable doubt" and that ample time has been allowed for appeals. There have been cases of people being in jail for 30 years or more only to be acquitted later.
I am not ideologically opposed to the death penalty for certain crimes, however due to incompetence and corruption of government, I have to oppose it on the principal that it too often makes mistakes. Prisoners can be freed, dead men stay dead.
Exactly. Much as I like to see certain kinds of criminals dead, there's no denying that investigators can be quite stupid at times. And not to mention malicious lying bitches and jerks seem to get more and more brazen these days. Take this guy for example...
https://www.youtube.com/watch?v=ZP2syWS-2M0 Dude stayed in prison for 5 years over a rape allegation. The woman later admitted she lied and got a slap on the wrist.
Concludingly, I am both against death penalty and life in prison as both are unnecessary harsh punishments. Supervision after serving a long prison time is better

Might not work everywhere but don't Greenlanders let out their inmates during certain times of the year and they even go hunting?
Unfortunately supervision can only go so far. I live in a low-income neighborhood where it's common knowledge who's who is a drug dealer. These people have been in and out of jail several times already but never change. An "industry" has even developed around them where equally corrupt cops and local politicians had them arrested, fined, released and then arrested again.