@Carballo,
hmmm wanting to punish someone else for your husband cheating on you
I'd say it's a no go.
Focus on your husband and your marriage.
It is his responsibility to end the woman contacting him. If anyone reports her, it should be him, not you. But again, your husband was the one who cheated on you. She didn't cheat on you. She is not in a relationship with you.
Talk to your husband about this. He needs to know what you are considering.
Hopefully you are both in counselling, separately and together, to help you with all the feelings you need to work through.
Misdirected rage is as much a problem as anything else.