Detective uniformed colleagues. Some are private persons, and may be known as private investigators, or as "The Eye That Never Sleeps" – the motto of the Pinkerton Detective Agency or shortened to simply "private eyes". The detective branch in most large police agencies is organized into several squads or departments, each of which specializes in investigation into a particular type of crime or a particular type of undercover operation, which may include: homicide, robbery, burglary, auto theft, organized crimes, missing persons, juvenile crime, fraud, narcotics, vice, criminal intelligence, aggravated assault/battery, sexual assault, computer crime, domestic violence, surveillance, and arson, among others.
The No. 1 Ladies' Detective Agency of Cheerful Ladies" was the first of the No. 1 Ladies' Detective Agency novels to be printed in hardback, with a very large initial print run of 101,000 copies to meet the anticipated demand, as sales in English of the series to date, in 2004, exceeded five million. There was an interesting pathway for knowledge and appreciation of the series by McCall Smith, a Scot, featuring Precious Ramotswe, the female detective in Botswana, to reach England. In reviewing the fifth novel in the series, Marcel Berlins describes the pathway of the growing audience, requiring one to understand that although Scotland