My son is in jail on a criminal matter he needs to get to a paternity appointment in a domestic relations case what form would I motion the court to a

I think about all you can do is notify the Domestic relations court that your son is in jail - I do not beleive the criminal court judge will order transport of your son to the domestic relations court.  I would call or email the clerk for the judge that is handling the domestic relations case and let him or her know the situation - what jail your son is in, how long he is in for, etc.  The emails address (sometimes) and phone number for each judges cler can be found on the web page for that court (like Boulder court or Arapahoe county court, etc). There is a link to "Judges and Staff" on each website for each court....