I collected a new swarm today from Helen, another low intervention bee keeper who has a Top Bar Hive near the John Radcliffe Hospital. She had kindly caught them in a skep with a sheet under it. Collecting it was simple: tie up the sheet and carry it all away.
The colony from which it comes has been untreated for 2 years. Before that it was intensively managed by a keeper in Wolvercote.
I have placed it in my out-apiary in a new Commercial brood box: Hive F. I'm using frames without foundation, with only the lolly stick guides.