Adam has written a book called "Digits and Palms: A Ten-Fingered Exercise in Behavioral Detection" (retailing at 40/-) in addition to magazine articles.
Evelyn attended "a small art school in Putney" (assuming she's being truthful to Miss Dalton).
Hamlyn's astrological sign in the Zodiac is Scorpio; Evelyn's a Libra - borne out by the fact that the episode opens on October 18th with Evie celebrating her birthday at the close (Libra spans September 23rd to October 22nd). Anneke Wills' own birthday is October 20th.