Murder at Site 3 (also known as Murder at Site Three) is a 1958 British film directed by Francis Searle and starring Barbara Shelley, Geoffrey Toone and John Warwick. featuring the character of Sexton Blake. It was written by Paddy Manning O'Brine, based on the 1958 novel Crime is My Business by W Howard Baker (as Peter Saxon), and produced at Bray Studios by Francis Searle's own production company (technically it is not a Hammer Film).
Sexton Blake tracks down a gang who have stolen secrets from a rocket site.
The Monthly Film Bulletin wrote: "Blake, his secretary and his assistant Tinker are attractively characterised in a modest thriller suffering less from its many improbabilities than a meandering, over-deliberate and for the most part tedious narrative.:"