At the risk of stating the painfully obvious, &quot;gun crimes&quot; refers to crimes committed with guns (murder, assault with a deadly weapon, armed robbery, etc.), not to violations of gun prohibition.  There is no analogy to that with drugs.  The <i>only</i> crime you can commit with a drug is a violation of prohibition.  (Well, OK, maybe you can try to poison someone, but that&#x27;s not exactly a rampant problem.)