I think you might have a problem but it would depend on exactly what substance you had. I don't know of any cases where this is still a misdemeanor and the CHL law says:OFT wrote: 2. Possession of a Controlled Substance – Misdemeanor
I received probation for both counts.
Note that they use the current definition of the law as a felony, no matter what it was back then.(b) For the purposes of this section, an offense under the laws of this state, another state, or the United States is:
(1) a felony if the offense, at the time of a person's application for a license to carry a concealed handgun:
(A) is designated by a law of this state as a felony;