Just a few thoughts .
1 400 Things cops know was a interesting , well thought out and entertaining audiobook

2. This book was good but written with much more caution and awareness of the public’s response . I firmly believe that either directly or in directly the writers supervisors told him to be careful of the effect his writing could have on his career or legacy.

3. listen to his first book and you will listen to this one. Listen to this book first and you might pass on 400 things cops know , any new law enforcement officer will certainly find a ton of good ( possibly life saving ) information in the stories from 400 things