When Gibbs gets his gun from the hidden compartment at the steps, he grabs a 2" revolver. A few moments later he has drawn down on the intruder and he's carrying a 1911 semi-automatic.
When Gibbs and Phineas first sit down to eat dinner and talk, the position of the food on Phineas' plate keeps changing between shots.
Bishop mentions that local law enforcement has been notified near Pikesville, MD, where Phineas lives with his aunt and uncle. She included in the list of agencies the "highway patrol." Maryland doesn't have a highway patrol; instead, it has the Maryland State Police.