Leicaman

A Deadly State of Mind - S4-E6

Plot hole: Collier damages a post with his car as he leaves the driveway. His car would certainly have been damaged. The storyline is not long enough for Collier to have his car repaired. Columbo knows about the damaged post, but he never looks into how the damage occurred and never looks at Collier's car, which would have been incriminating.

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

Troubled Waters - S4-E4

Plot hole: After Danziger fires the revolver into the mattress, Columbo compares that slug with the murder slug. He puts them both on a narrow railing. It is noticeably windy, and ships often roll with waves. Columbo would not risk losing both pieces of evidence.

Leicaman

An Exercise in Fatality - S4-E1

Plot hole: When Columbo finds Stafford's street shoes in his locker, they are tied. How did Janus get his shoes off without untying them? If Janus did untie them, why did he retie them before putting them in the locker? And why didn't Columbo wonder why someone would take off his shoes and tie them before putting them away?

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