Other than Barlow and Watt, no other character from "Softly Softly Task Force" makes an appearance in the "Jack the Ripper" series.
A tie-in book, Elwyn Jones and John Lloyd's "The Ripper File", was published in 1975 by Futura Publications (ISBN: 9780860071181). It is cited as source material for the Sherlock Holmes film Murder by Decree (1979).
The series was syndicated to US television in 1974 by 20th Century Fox Television with added introductions by Sebastian Cabot.