Final answer:
The arrest of Adolphe Le Bon could be attributed to circumstantial evidence, assumptions by the efficient but perhaps overzealous Parisian police, or a depiction of the flaws within the legal system where innocent people can be apprehended without concrete proof.
Step-by-step explanation:
The question seems to be about a character named Adolphe Le Bon, who was arrested without a clear reason given by the author. This scenario is common in literature as a device to create mystery or to critique the justice system. In the absence of explicit details within the text, readers can infer that Adolphe Le Bon may have been arrested due to circumstantial evidence, biases of the authorities, or simply as a convenient suspect to close the case quickly.
This kind of situation might reflect the imperfections of the legal system, where sometimes innocent individuals are implicated without substantial proof. The role of the Parisian police described in the text suggests that they are proficient in their work and may sometimes act on assumptions rather than concrete evidence, potentially leading to unjust arrests.
Another interpretation could involve the concept of policial action, where the police may follow a procedure that involves detaining individuals linked to a crime scene until proven otherwise.