North Carolina makes it a crime to intercept any oral, wire, or electronic communication unless one party consents. I strongly recommend you cease mentioning this immediately and do not indicate on any official document or correspondence that you have done this... in other words do not tell anyone that you tapped this phone. Consult a local criminal attorney immediately for assistance in avoiding prosecution.
Here is the law...
There is another way to get to the messages. When you sue her for divorce and him for alienation of affections you can order a transcript of the phone records from the cell provider. You may have to use a subpoena. Either way you should be able to obtain the text messages you want without having to use the illegally obtained copy.
Again, do not tell anyone else about this and seek counsel immediately.
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