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.

[Q]: For decades we have proved drug cases by having a scientist who tests the drug submit an affidavit which says ���its cocaine��� or ���its marijuana������without having to call the scientist to testify about his findings.
[A]: Invalid


[Q]: Hell this whole Gun laws thing is just like the slavery thing,
[A]: Valid


[Q]: BTW, It's weird how you always whine that the rights of criminals are violated, you're against Megan's Law, you think pedophilia should be legalized, and you want guns taken out of as many hands as possible.
[A]:
Valid