You can find the petition for a domestic abuse protection order as well as the instructions on how to fill out the petition on the Office of the Attorney General State of Mississippi website.
You may also find the forms by calling or visiting the civil clerk at the courthouse in your area. To find the courthouse in your area, go to MS Courthouse Locations. Someone in a domestic violence organization in your area may be able to help you get the forms and also help you through the process. To find help in your area, go to MS Advocates and Shelters.