I aware of the DC laws now.
Still, he committed two offenses here, not one.
At least in my opinion.
I support drug testing for welfare recipients too, however I support drug testing for all federal employees too, from the janitor to the prissy president.
Because they are welfare recipients too.
He may have committed more than two offenses. Presumably, he’s been taking drugs for some time, and each time he did so was a crime. But the usual treatment is that the first time a person is caught, they treat it as a first offense, rather than taking the time to go back through history.
That is, if the person is willing to plead guilty. Otherwise, like in the case of Marion Barry, they go back and try to build up a much as they can, to pressure the person into accepting a deal, or to punish them for not accepting a deal.
BTW, it is this notion of “first caught, first time” that kind of indicates that the “war on drugs” is not so much a societal assertion that taking drugs is horribly bad, but that “darn it, we made it illegal, and people aught to obey”.
And I say that as a person who doesn’t particularly want to decriminalize drug use, and a person who has never been tempted to take drugs (although frankly I think it is stupid that it is illegal in all cases, and if I could legally smoke a joint I’d do so once to experience it, just as I got drunk once just to see what it was like).