Gentleman Thief's Murder: File 1 - S1-E10
Other mistake: A single wimpy guy on his own wouldn't be able to bury something as large as a painting in a rush without leaving any trace the police can discover.
Kindaichi shônen no jiken bo (1997)
1 other mistake in Gentleman Thief's Murder: File 1
Starring: Taiki Matsuno, Emi Uwagawa, Kazuyuki Aijima
Wax Doll Castle Murder Case: File 2 - S1-E8
Character mistake: Hajime's proposed solution is obviously wrong, but not for the reason they mention; the 'killer' could never clean themselves up completely and effortlessly in such a short time from the soot.