From The Law in General Practice, Some Chapters in Everyday Forensic Medicine by Stanley Bean Atkinson (London: Henry Frowde, 1908), page 174:

In less serious offences 'kleptomania' affords a well-known example [of extenuation]; this method of defence was made notorious by the celebrated action against the wife of Dr. Ramsbotham, the obstetrician, which is recorded in Serjeant Ballantine's 'Experiences'....