Mich. Comp. Laws § 28.173a

Sec. 3a. (1) An individual required by law to provide samples for DNA identification profiling who refuses to provide or resists providing those samples is guilty of a misdemeanor punishable by imprisonment for not more than 1 year or a fine of not more than $1,000.00, or both. The individual shall be advised that his or her resistance or refusal to provide samples described in this subsection is a misdemeanor. (2) If at the time an individual who is required by law to provide samples for DNA identification profiling is arrested for committing or attempting to commit a felony offense or is convicted or found responsible the investigating law enforcement agency or the department already has a sample from the individual that meets the requirements of the rules promulgated under this act, the individual is not required to provide another sample. However, if an individual's DNA sample is inadequate for purposes of analysis, the individual shall provide another DNA sample that is adequate for analysis.