Luton did indeed handle the Hatfield arrivals, as I did it for many years. Depending on workload and the Hatfield Approach controller we either did the initial vectoring and then handed it over to Hatfield or we put them on the ILS and transferred them straight to Hatfield Tower. We also dealt with their departures as well.

By the time Luton Approach moved to West Drayton, in Feb 2000 if my memory serves me right, Hatfield was closed.