Gentleman Thief's Murder: File 1 - S1-E10
Continuity mistake: When the painting pops up with the card of the real Kaitou Gentleman's card on it, the card is placed on a different spot in the different shots. (00:11:55)
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.