This is one of 8 Bulldog Drummond adventures produced by Paramount in the late 1930s, and sold to Congress Films (II) in mid-1954 for re-release; Congress redesigned the opening and closing credits, in order to eliminate all evidence of Paramount's ownership, going so far as to even alter the copyright claimant statements on the title cards; Congress, in turn, sold the films to Governor Films for television syndication. Along the way, Paramount, having disowned the films, never bothered to renew the copyrights, and they fell into public domain, with the result that inferior VHS and DVD copies have been in distribution for many years, from a variety of sub-distributors who specialize in public domain material.
At one point, a bobby says, "Orders is orders." That was a running line used by E.E. Clive (who here plays Tenny) when he played a bobby in Bulldog Drummond Strikes Back (1934).
This is the second Drummond film in which J. Carrol Naish portrayed the villain. He previously played Valdin in Bulldog Drummond Comes Back (1937).