There isn't a "trespass" case between spouses except in the most unusual of situations- did she actually obtain a Preliminary (or Emergency) Protective Order- that is hugely different- This is a fact- dependent analysis- IF she did obtain a Preliminary Protective Order, you should have been served with that, and in it there will be details about your ability to see your son. If the document she filed is a Notice of No Trespass, you can still see your son at school, or elsewhere- but you CANNOT violate the terms of a Protective Order even if it's based on a fiction by her, so be very careful not to act rashly- you MUST have an attorney to help with your situation to be sure you do what is legally proper.
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You need to consult with a local attorney with experience in divorce and child custody disputes. In Virginia, you have as much right to see your children as she does. The problem becomes getting the child. You cannot break any laws in the process of retrieving the child, and so generally you are limited to the time that she allows. You need to have the details of your case reviewed by an experienced attorney, and immediately have the appropriate complaint, petition, or motion filed in the appropriate court. As a father, you do have rights, but you have to make sure that you enforce them.
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