Thank you for choosing this website to deal with your difficult situation.
I understand your concern about one of your adult stepsons whom you believe may be doing some damage to your car, taking things from you and may possibly even been feeding you poisonous food. You have talked to her husband about it and he was not happy. Recently you have been able to obtain some evidence that conclusively proves one of your stepsons is involved.
You need to talk to your husband and showed him the proof. Although he may be reluctant he is the person that you need on your side to help you confront your stepsons and help you protect yourself from further injury. It is only after you can convince him that the two of you need to support each other in this confrontation that you are ready to take on your stepsons. If he does not want to participate then you must decide whether or not you're going to confront your stepsons on your own which is what I would recommend.
I see that your currently off-line and I would be very interested in your reaction to my answer. I'll be available all day and into the evening.
Are you online?
I need your advice again. The situation has become progressively worse. The invasion of my privacy has multiplied many folds and I am convinced that my stepsons want me out of the house. I no longer tell my husband about what is happening because he has not addressed the situation at all previously.I no longer have the will to fight back so I just sit and cry when I see evidence of their actions.