TASK DEFINITION: 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.
PROBLEM: Doubtfully it would get banned in a republic, sure in democracy since murder is bad.

SOLUTION: Valid

PROBLEM: The argument for the death penalty as a deterrent has been proved wrong by the implementation of it through history.

SOLUTION: Valid

PROBLEM: Since the majority of violent crimes are committed by career criminals, the death penalty surely puts a damper on their career.

SOLUTION:
Valid