Can I send a letter to a person who has a no contact order on them if I'm the supposed victim? I understand the no contact order

What part of no contact is unclear? If he responds to the letter, he is in violation of the order and could face additional charges. I seriously doubt you’d be trying to send a letter one way and not wanting a response. The People are doing this because there is a strong public policy against domestic violence. He needs an attorney. You may need one to assist with the DA. We don’t know how serious this was….search for an attorney.