I gave it a good review, because as in his previous books, I like Miller's writing, the information he has to impart, and how he lays it out.
This one is designed for citizens unfamiliar with how the police come up with their rules and regulations regarding such things. Good book, you should get it.
My one caveat was that he didn't seem to know any bad cops, so sections dealing with LEO's who step over the line were exceedingly thin.
If an officer is following the agency guidelines, then s/he is covered, and when citizens get pissed off because of some awful thing the po-lice did, they don't understand that such was allowed under the scope of duty. (Sometimes these policies are suspect and need to be changed, and that happens, but if the officer involved in a dust-up was following them properly at the time, both management and the union will stand up for them. In theory.)
That police step over the lines happens, and I've pointed out several egregious examples of that here over the years, ranging from bean bagging twelve-year-old girls; to using live shotgun rounds on a suspect instead of bean-bag rounds as intended; to beating the crap out of the wrong guy who just happened to be walking along at the wrong place and time.
When somebody gets beaten to death by police officers on the street and the coroner is shocked at the damage, somebody overstepped a line. Shit happens, of course, but suspected pissing in the bushes is not generally considered a capital crime ...
Usually these result in big lawsuits and almost every time, the city or county sponsoring the agency loses and has to pay out big bucks.
That said, Miller's book is out and it is a must for people who aren't police but who want to understand how these things are determined.
Get the book here.