Both William Simons, who has a cameo, and Peter Jeffrey, playing a co-defendant, would later regularly play barristers in the series - Martin O'Connor and Peter Edgar QC respectively.
In this very unusual story the Prosecution case only lasts a few minutes.
An extended version of the end theme music "Distant Hills" is heard featuring a normally unheard slow introduction. This may have been to compensate for the fairly short running time of the episode.
Michael Gover, who played the barrister representing William Vennings, later played a different barrister in Crown Court called Lawrence Bass QC.