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

Plot hole: Petroni has the engines at full power to move the plane out of the rut. Once the plane is free, he never pulls the power back. With that power, the plane would accelerate down the runway until it took off or hit something.

Leicaman

Plot hole: Why didn't John declare his conflict of interest to the Board of County Supervisors as soon as Ben told him about the lumber contract he had signed?

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

Partners - S1-E12

Plot hole: The poison is in the dog collar. Anson gets the poison from touching the collar. Why didn't the dog get any poison from the collar?

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

Independent Dependents - S1-E7

Plot hole: When Helen goes into the air ducts, she simply removes the grates. They would not be loose like that, they would be firmly attached. When the team enters the basement they go through an ordinary door by picking an ordinary lock. A very high security installation like Axe Industries would not have such an insecure entry, even into the basement.

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

Freshman Orientation and the Inventor of the Zipper - S4-E6

Plot hole: Memaw gets a call from Dr. Sturgis saying that he has moved to Waxahatchie and would she please call him back. He does not say the new phone number, and this was well before cell phones were in widespread use by the general public, so it could only be a land line. Memaw calls him back, although she could not know the number.

Leicaman