Volume 56

Volume 56 was released on January 13, 2007 in Japan.

Sato's Ring Case
Anime Episode 487: Metropolitan Police Detective Love Story 8: The Left Hand's Ring Finger

Onibaba Legend Murder Case
Anime Episode 481-482: Mountain Witch's Cutlery

Missing Photo Case
Anime Episode 484-485: Whereabouts of the Dark Photograph

Billing Fraud Case
Anime Episode 491: Clash of Red and Black (The Beginning)