I am developing a change of control form for my company. I have a field on the form named (submitter) that has already set to "Is Not Null". submitter is field in a separate table call tblcontact. In the tblcontact, I have their first names, last names and department codes. Now on the submitter field in that change of form, I also want to be sure that the submitter is belong to 405 (the departmentcode in the tblcontact table).