Investigation of a Murder by Eric Saward

The Investigation Of A Murder by Eric Saward was broadcast on BBC Radio 4 in 1979.

Story:
The methods of police investigation in a murder case are believed to be well-known. Routine enquiry, occasional inspiration. leading to conviction or frustration. But what is the effect of modern police work on those only casually or coincidentally involved in the case? What is the impact, in particular, on the relatives of the suspect; the man believed, but not yet known, to have committed the crime