Final answer:
Dupin's use of the personification of truth in sentences 78-81 explains a problem with the police's way of looking for the murderer. The police fail because they only consider their own ideas of ingenuity and search for hidden items based on how they would hide them. This approach is flawed because the intellect and cunning of the individual felon may differ from that of the police, making it difficult for them to catch the criminal.
Step-by-step explanation:
Dupin's use of the personification of truth in sentences 78-81 provides insight into a problem with the police's way of looking for the murderer. Dupin suggests that the police fail in their investigations because they only consider their own ideas of ingenuity and search for hidden items based on how they would hide them. However, this approach is flawed because the intellect and cunning of the individual felon may differ from that of the police, making it difficult for them to catch the criminal. Dupin highlights that the police's lack of variation in their principles and their failure to adapt to different circumstances hinder their ability to solve cases effectively