Many of the addicts in our lives are doing or have done something illegal--that's what addicts do. I have no doubt that my AS participates in illegal activities regularly. I don't own that. He does. I choose not to have him in my home because of those illegal activities. I will not live with someone who does that because it jeopardizes my life and wellbeing. If he gets caught doing those activities, he'll go to jail.....not me. That is the consequence (and risk) of participating in illegal activies.
Unless you are still living with him or are allowing those activities to involve you, you don't own it......he does. Let it go however you are able. Confide in a sponsor or a therapist if that's what you need to do for you.
Take care of you.
gentle hugs
ke