Christiansen is a female cop hating, sexist, abusive person and cop. I personally know this author. I was a cadet in 2002 at Kalamazoo Valley Community College Police Academy where he was teaching as a drill sgt. He used to scream every day at the 5 female cadets about how we don't belong in law enforcement. And how Michigan Commission On Law Enforcement Standards (MCOLES) had to reduced it standards so females could pass the entrance test to the academy. He says women are worthless in law enforcement and should never be allowed to work in it. Christiansen would regularly make derogatory comments about the female cadets bodies, like weight and the size of their breasts, he insulted me bc I have small breasts. After 8+ weeks of abuse, I made a complaint, I was immediately expelled from the program with some BS excuse, later I won a very small lawsuit against the college. Sexism in the police force back then was OK so I lost my lawsuit against MCOLES, and they sided with the officers and so did the Michigan Attorney General without even hearing my case. The Blue Code of Silence is very much real. Christiansen is a horrible person and likes hurting women. Don't be fooled by the smile and personality. His claimed success is greatly inflated and he has a personality like the devil, nice to your face and will stab you in the back any chance he gets. DO NOT support this sexist pig!