When Mona is in Barnaby's office smoking a cigarette, the orientation of how she positions the hand holding it changes from cut to cut.
When the hoodlums commence with the robbery plans, in a reverse shot Marty is near a palm tree smoking a cigarette and holding a newspaper. However, on the next immediate cut which is a front shot, he is now only holding a newspaper.
When Capt. Barnaby gets ready to talk to Miss Easton he switches the phone from his left hand to the right then hangs up. However, in the next cut, he repeats the action of hanging up the phone and he is doing it solely with his left hand.
In the beginning, Mr. Hartampf is coming down the stairs, and when he spots the criminal near a wall at the exit, he hides under the stairwell. However during the shooting of the cop; Hartampf is seen out in the open near the wall where the criminal was just standing.
When Mr. Jenner is in Barnaby's office the positioning of his right hand holding the eyeglasses changed from one cut to another. At one point it is near his face and on the next cut it is resting on the desk.