Final answer:
The Hauptmann's handwriting comparison was a crucial part of Richard Hauptmann's 1932 trial, where forensic analysis was used to link his handwriting to ransom notes in the Lindbergh kidnapping case, but the methods and conclusions remain controversial.
Step-by-step explanation:
The Hauptmann's handwriting comparison refers to the forensic analysis conducted during the trial of Richard Hauptmann, who was charged with the 1932 kidnapping and murder of Charles Lindbergh Jr., the son of famous aviator Charles Lindbergh. During the trial, a pivotal piece of evidence was the handwriting on the ransom notes, which was compared to Hauptmann's handwriting. Experts at the time attested that the handwriting matched Hauptmann's, although the methods used were less scientifically rigorous than those used in modern forensic science. This evidence was controversial and remains debated by historians and forensic experts.