We would like you to assess the QUALITY of each of the following argument (discussing Death Penalty) and determine if the argument is Valid or Invalid. A valid argument is clearly interpretable and either expresses an argument, or a premise or a conclusion that can be used in an argument for the topic of death penalty. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of death penalty.

Justice, while we have the hold of it, should be democratic and swift in these manners.
Invalid

When someone mentions a criminal deterrence factor with death sentences, it sounds like a bad joke or total ignorance.
Valid

A significent amount of death row inmates have been exonerated on finding of incompetent/drunk/high lawyers, racial prejudice, hidden or recent evidence, and other such non-court violations.

Valid