There are more arrests in the wake of yesterday's taking of Selwyn-Clarke. Many of Selwyn-Clarke's Chinese and Eurasian associates are arrested around this time, but in most cases the exact details are not known.
The British citizens living at the French Hospital and not under arrest are summoned to the Foreign Affairs Department and told they are to enter Stanley on May 6. (They end up going on May 7.)
Sources:
Arrests: Ride Papers, NA, NA/343/1/72, sheet 4.
British citizens: Ride Papers, Waichow Intelligence Summary 30
(both kindly supplied by Elizabeth Ride)
Note:
For a discussion of these reports and their interpretation see
http://brianedgar.wordpress.com/2012/08/19/the-french-hospital-arrests-a-synthesis-of-sources/
The Ride Papers are held at the Hong Kong Heritage Project: