Can I see my son if I have all my parental rights if he is in my in-laws house police told me if they don’t answer door they don’t have to let me

Joshua: If you do not have a pending dissolution case, then either parent can have custody and within reason do as they see fit with regard to children of the marriage.  If you have a dissolution action pending, then the best way to get a set of "rules" addressing proper co-parenting is to request a provisional hearing with the Court for a temporary paenting time order.  The Court will issue an order they find is in the best interests of the children.  Once issued, both parents must follow the "rules" set by the Judge until and unless they are modified.  Whatever you do, do not make it worse for the kids by engaging in inappropriate behavior in front of them.  Also, I would suggest reading the Indiana Parenting Time Guidelines to begin to learn what a Court will expect of both parents moving forward in a dissolution case.