Any person convicted of any offense under this article, other than the possession offenses described in § 21-28-4.01(c), shall, in addition to any other sentence and/or fine imposed, be assessed four hundred dollars ($400) by the court and the assessment shall be collected from the person convicted before any other fines authorized by this chapter. The court shall not suspend any part or all of the imposition of the assessment required by this subsection, unless the court finds an inability to pay. The assessment shall be deposited in the drug education, assessment and treatment account to be used by the department of behavioral healthcare, developmental disabilities and hospitals and the department of health for the purpose of administration, drug education, and treatment.