The fact that most police are good does not mean there should be an acceptance of a culture that hides misdeeds by police. Most institutions I can think of that have the public good as a goal also suffer from deciding they should hide problems rather than fix them and suffer a loss of stature in the public eye (police and churches are examples). 

Also, I assume "black and white fever" does not refer to this ebook - A Black and White Fever (Erotic Feast Book 1), available on Amazon. Although at 9 pages I'm not sure it qualifies as a "feast".