Michael Simonsen is a former police officer for the Los Angeles Police Department. In 1977, as a means to teach children safety Michael Simonsen, developed an entertaining visual presentation through the use of a Macaw.  The bird, known as Officer Byrd, No. 007, was the genesis of the book The Adventures of Officer Byrd – Get Help!

According to the book description of The Adventures of Officer Byrd – Get Help!, it “is based on a true-story. It's about a real police bird who helps children and adults. The story is about Officer Byrd helping young people not to keep bad secrets and to get help. The children's book is for ages five to 12 plus.”

Captain Jim Di Giovanna retired as commander of the Los Angeles County Sheriff’s Department Aero Bureau on March 30, 2006, having been assigned to the aviation unit since January 1989. His 34-year law enforcement career also included assignments as a patrol deputy, patrol and operations sergeant and patrol lieutenant watch commander, along with assignments at the Sheriff’s Information Bureau, Field Operations Headquarters and Custody Division.

Captain Jim Di Giovanna is a commercial pilot, helicopter- and instrument-rated, with over 5,800 flight hours. As unit commander of the Aero Bureau, he was responsible for managing aviation operations for the largest sheriff's department in the United States. While supervising 72 sworn and civilian sheriff's department personnel, Captain Jim Di Giovanna had responsibility for directing and overseeing the operation and maintenance of the department's 15 rotary-wing and three fixed-wing aircraft.  He is also a retired colonel from the United States Army Reserve Jim Di Giovanna is the co-author of Tactical Helicopter Missions: How to Fly Safe, Effective Airborne Law Enforcement Missions.

Howard Earle is a retired Assistant Sheriff from the Los Angeles County Sheriff’s Department.  He is the author of Police Community Relations: Crisis in Our Times.  According to the book description, “this book continues to present comprehensive, authoritative information on all phases of this complex topic. The text has been expanded and updated, however, to maintain currency with concepts and practices. It begins by reviewing general problems of police community relations (PCR), including the police image and crisis areas.”

Police-Writers.com now hosts 903 police officers (representing 389 police departments) and their 1905  police books in 32 categories, there are also listings of United States federal law enforcement employees turned authors, international police officers who have written books and civilian police personnel who have written books.