Why is dr. carla o'donnell visiting the jurisville police dept

Because she has herpale derpales

Dr. Carla o'donnell - A renowned name in the field of criminology, as she has made a name in the field and is an absolute professional when it comes to solving problems relating criminal cases.

Explanation:

Reason for visiting jurisville police dept:

The reason for her visit is to analyse and more over check the set of data present with the authorities. As she happens to be a professional with an extra eye on evaluating any set of data to make it sure whether it is authentic or not nature.