Leicaman

A Deadly State of Mind - S4-E6

Plot hole: Collier's relationship with Nadia Donner is wildly improper, and her husband knows about it. It seems unlikely that nothing was done about it.

Leicaman

Short Fuse - S1-E7

Plot hole: We are told several times that the road to the mountain house is very narrow and difficult to negotiate. How did the very large crane get there so quickly to lift the bodies after the crash?

Leicaman

Butterfly in Shades of Grey - S12-E2

Plot hole: Columbo says that all the doors and windows at the murder scene were found to be locked. But Fielding Chase left the house through a door with a dead-bolt lock, wiping the doorknob and not locking the door.

Leicaman