Here are a few books you might spend some time with:
"The War on Cops: How the New Attack on Law and Order Makes Everyone Less Safe" by Heather Mac Donald. The anti-police crowd and liberals in general seem to hate Mac Donald. They choose to kill the messenger. But I haven't seen anyone refute her facts about your profession and the dangers that come with it.
"In Context: Understanding Police Killings of Unarmed Civilians" by Nick Selby, Ben Singleton, and Ed Flosi. This is a fascinating, detailed, case-by-case examination of these tragic events. There is much to be learned here that impacts your safety on the street and perhaps your ability to avoid such an incident.
"Deadly Force Encounters: What Cops Need to Know to Mentally and Physically Prepare for and Survive a Gunfight" by Dr. Alexis Artwohl. Yes, this is an oldie, published in 1997. But it's really a goodie. It stands the test of time with its clear explanations of the psychology, physiology, and training implications for critical use-of-force incidents.
"Blue Lives Matter: In the Line of Duty" by Steve Cooley and Robert Schirn. Hot off the press, and could save your life. This book details the tragic murders of police officers and sheriff's deputies in Los Angeles County. It is the first of a series authored by former District Attorney of Los Angeles County Steve Cooley (who also was an LAPD reserve officer) and career prosecutor Bob Schirn. From the crime scene to the courtroom, the book is richly detailed. Each chapter has a "Lessons Learned" section that proves that the classic deadly errors we learned two generations ago from Pierce Brooks' book "Officer Down…Code Three" must be re-learned by every generation of officers.