Legal Question in Family Law in Missouri

Well, I wouldn't call it "pressing charges" unless you are talking about trying to have her arrested and charged with criminal non-support by the prosecuting attorney. If that is what you mean, call the prosecutor's office in the county where the child support judgment was entered. However, you may really be asking: "What can I do about this?" If so, there may be an alternative to seeking criminal prosecution. You could consider filing a Motion for Contempt in the Court that issued the child support Order. Your ex will be required to appear personally in Court to explain to the Judge why she has not complied with the Judge's Order. You should consult with an attorney about this, and if you do not already have an attorney, you may contact me for a consultation. I have handled many of these cases in the thirty-two years I have been practicing law.