Dr. Merrins:  Um , Detective , this is somewhat awkward , but I 'm not sure who I should report it to .
Olivia Benson: Report what ?
Dr. Merrins: The admission records say she 's _ 16 _ .
Olivia Benson: Yeah , she is .
Dr. Merrins: On the X - ray of her jaw , I noticed she did n't have any buds .
Olivia Benson: Sorry , what are buds ?
Dr. Merrins: Undescended wisdom teeth . They do n't come in until you reach adulthood .
Olivia Benson: Right .
Dr. Merrins: When I was wiring her , I noticed that she had scars where her wisdom teeth had been extracted .
Olivia Benson: So what does that mean ?
Dr. Merrins: Cassandra ca n't be 16 . Judging from how well the scars are healed over , I 'd say she has to be in her mid to late 20s .