Typically, a first time, non-violent drug offender does not do a significant portion of his sentence in Missouri. When he gets to MDC, he will be provided a presumed out date. Additionally, his case manager in prison should be able to answer all is questions.
DISCLAIMER: I am not your attorney. My response to your question does not, nor is it intended to, create an attorney-client relationship. An attorney-client relationship is not created with John G. Gromowsky or The Gromowsky Law Firm, LLC unless and until a written legal services agreement is executed and an attorney fees or retainer is paid. My response is provided for educational/informational purposes only. It is not legal advice. I am licensed to practice in Missouri and Kansas. The law may be different where you live. If you need legal advice, you should visit in person with an attorney licensed to practice law where you live.