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.

If there were a certain number of cases involving concealed carriers having their guns stolen right off of their person, then it might be worth noting.
Valid

While slavery was at one time legal, it was not legal as a result of the Constitution or the Bill of Rights.
Invalid

There is no reason why gun owners should have to pay taxes to support police protection for people not wanting to own guns.

Valid