Detection and Rational Inquiry

Where it surfaces

• The Greene Murder Case

  Vance and Markham apply logical analysis to unravel the crimes.

• I: A Double Tragedy

  Vance's novel methods of criminal deduction are contrasted with ordinary police investigation, and the chapter sets up his role in solving the mystery through analysis.

• The Investigation Opens

  The chapter focuses on the initial investigation, with Markham, Vance, and Heath gathering evidence and questioning witnesses to uncover the truth behind the shootings.

• At the Greene Mansion

  Vance and Markham methodically examine the house, time Chester's response, and question the family.

• IV: The Missing Revolver

  Vance's methodical interviews and focus on the missing revolver exemplify rational investigation, contrasting with Markham and Heath's reliance on the burglar theory.

• VIII: The Second Tragedy

  Vance, Markham, and Heath apply rational investigation to the new murder, examining footprints and timing to piece together the crime.

• IX: The Three Bullets

  Vance and Markham systematically interview witnesses and gather forensic evidence, exemplifying the rational approach to solving the crimes.

• XIV: Footprints on the Carpet

  Vance and Heath analyze the crime scene, footprints, and the timing of the murder, applying logical deduction to the inconsistencies.

• XV: The Murderer in the House

  Vance, Markham, and Heath systematically interview witnesses, analyze alibis, and examine physical evidence like footprints and fingerprints.

• The Lost Poisons

  Vance's logical analysis of the footprints and the hidden galoshes exemplifies the theme of rational deduction.

• XVIII: In the Locked Library

  Vance's methodical examination of the library and his deduction about recent entry exemplify rational detective work.

• XXIII: The Missing Fact

  Vance applies an artistic analogy to detective work, emphasizing the need for pattern and composition in solving the case.

• XXV: The Capture

  Vance's methodical gathering of evidence from Vienna and his logical reconstruction of the case exemplify rational inquiry.

• Endnotes

  The endnotes include references to criminological texts, forensic methods (e.g., Gross's handbook on criminalistics), and the scientific analysis of footprints and wounds, highlighting the rational and systematic approach to solving the crimes.