This is really not an immigration question, but perhaps, if I were you, call the Court first and get them to remove your name from the letter since you have nothing do to with her alleged criminal acts.
Consult with an experienced federal lawyer ASAP. Your concerns may be real or exaggerated. CYC = that is cover your concerns.
Of course, every answer is based on the question asked and requires a more complete context. This answer should not be relied upon to make a legal decision. Seek the advice of an experienced criminal defense attorney before acting. Law Offices of Raymond G. Wigell, Ltd. Defenders of the Constitution since 1975/ Aggressive Creative Defense Strategies/ Website: www.waaltd.com 24/7 --(708) 481-4800.