Dexter usually cuts the clothing off of his victims, but here Hannah is seen wearing the same outfit she was wearing the night before. That outfit would have been destroyed.
The word "Colombians" is misspelled as "Columbians" on the briefing board when Laguerta and Deb discuss the Isaak Sirko case.
When Dexter goes to Sal Price's house to look around, he is shown coming in through an exterior door that has a deadbolt on it. The key hole is oddly on the inside.
When Laguerta is discussing possible victims of the Bay Harbor Butcher with Debra, she comments that Jordan Chase and his four accomplices had all disappeared. Dexter and Lumen left Dan "the Dentist" in the warehouse with the body of the molester for the police to find so they would think they were gay lovers who killed each other.
Dexter feels safe from Sirko as long as he is in jail but since Sirko is a mob boss, he could order a hit on people on the outside at any time.