The Complete Guide to Becoming A First-Line Supervisor of Police and Detective

Thinking about becoming a first-line supervisor of police and detective? That's the rank — sergeant or detective sergeant — where you're still in the field, but you're the one making the calls. You're the one who decides which officer takes the next 911 call, who reviews the arrest reports for mistakes, and who has to tell a rookie their use-of-force report is getting them suspended.

This guide skips the heroic movie montage and the recruiter's sales pitch. Instead, you'll get the real numbers: what a sergeant actually earns in a midsize city versus a metro department, how many years most officers wait before they can even test for the stripe, and what the promotion exam really looks like. You'll read a full hour-by-hour breakdown of a typical shift — including the 40 minutes spent on paperwork before you ever step outside.

You'll also get a hard-nosed self-assessment checklist to see if you have the temperament for it. The job requires you to be a boss to people who carry guns, a counselor to officers dealing with trauma, and a bureaucrat who can write a budget justification. If you're still interested after reading the real details, the final chapters give you a step-by-step plan to break in — from the education choices that actually matter to the interview questions that trip up most candidates.