Bulldog Drummond's Secret Police (1939)
Genres: Mystery
Cast: John Howard, Heather Angel, H. B. Warner, Reginald Denny
 Bulldog Drummond's Secret Police is a 1939 English Castle murder mystery film directed by James P. Hogan, based on the H. C. McNeile novel Temple Tower. It is one of many films featuring the British sleuth and adventurer Bulldog Drummond. In 1930, Fox produced Temple Tower, directed by Donald Gallaher and starring Kenneth MacKenna and Marceline Day, which was also based on the McNeile book.