"Vacated" means: "set aside." I assume by "SCS" you mean "CSC" for "Criminal Sexual Conduct." I would kindly but strongly recommend you have a Criminal Defense attorney carefully review the case documents to confirm the status of your son's case. Sometimes, the Court of Appeals "remands" the case, which means the case has to be tried all over again. I would have to review the actual Court of Appeals Opinion to be sure, but it sounds like your son's sentencing by the lower court judge was done improperly, such that your son may have to be re-sentenced. I wish your son all the best of luck. Warmest regards, Matt Catchick. www.catchicklaw.com
It usually means the court imposed an invalid sentence & now has to re-sentence you. Could be good or bad for you - don't have enough info. Hire an attorney.