The Secretary may revoke a Qualified Handgun Instructor License for cause. Sufficient cause may include, but is not limited to, evidence of: Unsafe range practices; False reporting of Firearm Safety Training Course completion or Handgun Permit Training Course completion; Falsification of permit applicant qualification scores; Failure to satisfy the minimum requirements of training courses; Conviction for a criminal offense that would preclude the licensee from purchasing or possessing a firearm; or Conviction for a criminal offense involving the distribution, use, or possession of a controlled substance. The Secretary shall provide written notification to a person whose Qualified Handgun Instructor License is revoked. A written notice of revocation shall contain the reasons the license was revoked and a statement of the person’s appeal rights. A person whose Qualified Handgun Instructor License is revoked shall return the license to the Licensing Division, Department of State Police within 10 days after receipt of the notice of revocation.