The demand must include all of the following: (a) Be served on the person in the manner required for service of process in this state. Michigan Legal Help has tools to fill many kinds of forms but we do not cover all areas.You may have a blank form that you need to fill out on your own. I received a notice that says interrogatories in aid of execution. What do this mean if my wages are already being garnished? A party must, without awaiting a discovery request, provide to the other parties: (a) the factual basis of the party's claims and defenses; The server can also have the person being ordered to appear sign the acknowledgement of service on the Proof of Service form. Rule 2.309 - Interrogatories to Parties (A) Availability; Procedure for Service; Limits. Some discovery methods are: 1. Interrogatories – written questions you send to the other party.