Abigail is cut on the left side of her neck, however the scar changes between the left and right side.
The extensive, severe winter settings reveal the Toronto filming sites, rather than represent the Baltimore dramatic setting. Baltimore winters are mild, and snow rarely accumulates on the ground for more than a few days at a time. Yet snow covered landscapes and large accumulations of snow on the streets are common in the series, and there is snowfall to be seen through the window of Hannibal's dining room during nearly every meal.
Despite being head of the behavioral sciences unit within the FBI, Jack Crawford displays gaps in expertise that should be a given. For instance, when Will Graham fails the clock test, he asks whether this is something that Will could fake.
Throughout the series, Will doesn't exhibit proper lab procedure. In an autopsy suite, if you're going to be near the bodies, gown, apron, gloves booties and goggles/face screen are required as personal protection. Will wears none of these.