[1] He was the editor of Red Herrings, the monthly in-house publication of the Crime Writers' Association, and a member of The Baker Street Irregulars and the Detection Club.
In 2009, Big Finish Productions released audio adaptations of his plays The Last Act and The Death and Life, starring Roger Llewellyn.
Davies was the editor of several collections for Wordsworth & Collectors Library (Barnes & Noble) including: In 2009 an omnibus volume of William Fryer Harvey's stories, titled "The Beast with Five Fingers" was published (ISBN 978-1-84022-179-4).
His DVD work includes writing and narrating commentaries for the MPI release of the digitally re-mastered Basil Rathbone Holmes films;[4] conducting interviews on the new Jeremy Brett Holmes releases; and with David Jason on A Touch of Frost DVDs.
Davies was one-third of the literary performance group The Mystery Men, alongside Matthew Booth and M. J. Elliott.