I'm not sure how you did your connection, but based on the brief sql query I am thinking linq2sql ...
Dim findOfficer = From officer In examinationOfficer.Exams_Officer
Order By officer.First_Name Ascending
Select officer.First_Name.ToUpper & " " & officer.Last_Name.ToUpper
This does not pull the 'Office_ID' and it only selects the first and last name.
Then you can set the primary key on the list control as the selected value and the name as the displayed value. To make things easier, if you use the first and last name often enough, I would create a field in the database that equals your first & last and call it fullnametext or similar. It saves on coding to just add it in for display purposes.
Check your link formatting.