Stabler pronounces buccal as "bookle" swab when it is pronounced "buckle."
Trey Greenway (Bruce Ryness), the vampire fanatic, states that "A vampire cannot enter a room unless he is invited". The correct notion, from vampire folklore, is typically that a vampire cannot enter a person's home unless they are invited. There is no vampire folklore which states that a vampire needs an invitation to enter every single room of a home or establishment. Greenway would have walked through multiple rooms of the SVU building, it is implausible to assume that he asked for an invitation to enter every room he went into.