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.

American homicide data are based on arrests, but British data are based on final dispositions.
Valid

Sad but true, the old saying of "give them an inch and they will take a mile" comes to mind.
Valid

I think penfolds basic mentality is that nobody should have guns but criminals and police, and if you face a criminal with a gun, sorry about the bad luck.

Valid