When Stabler is searching the Briscu closet, the shoes in front of the lock box are shown to be from Aldo. If Flutura has remained in a loveless marriage to Albi solely for the money, it is unlikely she'd shop at such an inexpensive shoe store.
In the passports Stabler finds in the Briscu home, the date and place of birth are in the wrong place. Date have the place noted, and place have the date noted.