Frankenstein, or, The Modern Prometheus, Chapter 21, by Mary Shelley
In which our hero learns that in the criminal justice system, the people are represented by two separate yet equally important groups: The police, who investigate crime, and the district attorneys, who prosecute the offenders. These are their stories.
Transcript: https://www.gutenberg.org/files/84/84-h/84-h.htm#chap21