In Michigan, recent case law has held that an arrest that was illegal, but for which there was probable cause, did not require suppression of evidence obtained as a result of the arrest or dismissal of the drunk driving charge. The court emphasized that the rigid exclusionary rule applies only to constitutionally invalid arrests. If the arrest is statutorily improper, the case does not need to be dismissed, but if it is constitutionally invalid, then yes, evidence would be suppressed and the case therefore would probably be dismissed.
If you believe your arrest was invalid, it will be important to gather all the information about your case, including the police report, review of videos and audio and possibly an independent investigation.
If you believe your arrest was invalid, it will be important to gather all the information about your case, including the police report, review of videos and audio and possibly an independent investigation.