Technically, Columbo uses force in "Negative Reaction" when restraining Paul Galesko (Dick Van Dyke) as Galesko appears to be in a fit of hysteria approaching the murder scene to identify his wife's body. However, Columbo does suspect that Galesko is putting on an act.

I always thought the scene with Margaret in Ransom was staged so wouldnt say it was excess force.

God bless,

Matthew