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.

Be that as it may, I still believe the DP is wrong for three main reasons:
Valid

Where do we draw the line, afterall we could forego any trial by jury and just go with the police report.
Valid

The deterrent of the death penalty cannot be directed at the executed, but does put fear in the minds of other potential capital criminals.

Valid