Imagine you are employed by a large city police department as the leader of the digital forensics division. A large corporation in the city has contacted the police for assistance in investigating its concerns that the company Chief Financial Officer (CFO) has been using company money to fund personal travel, gifts, and other expenses. As per the company security director, potential evidence collected thus far includes emails, bank statements, cancelled checks, a laptop, and a mobile device. 

Indicate the personnel resources needed for the investigation and assess why you believe this amount of resources is warranted.