We would like you to assess the QUALITY of each of the following argument (discussing Gun Control) 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 gun control. An invalid argument is a phrase that cannot be interpreted as an argument or not on the topic of gun control.

Students and teachers in schools need to defend themselves, too... Like laws banning guns in sensitive places, concealed carry laws are consistent with Heller���s self-defense rationale only because the Court claimed to limit the arms right to the home.
Valid

Pro-gunners what criminals in the street, the mall, and the neighborhood to be unarmed; and the good guys armed.
Valid

Our police are supposed to catch criminals after they have done something, not necessarily stop crime during its comission.

Valid