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.

[Q]: I support the death penalty, but feel there needs to be a better system of checks and balances to ensure each individual gets a fair trial using all evidentiary methods available.
[A]: Valid


[Q]: You say that all people who commit gruesome murders are psychopaths.
[A]: Valid


[Q]: I have heard of two instances of innocent men who were executed back in the seventies.
[A]:
Valid