To become a police officer means to undergo the process of becoming a member of law enforcement, typically by completing a series of requirements such as training, background checks and exams. Full definition
You could become a police officer with your law enforcement resume, or you could decide to become a high profile security officer. (myperfectresume.com)
Well I'm currently in college working on becoming a police officer. (animeloversdating.com)
To that end, both boys become police officers, though one is far more committed to honesty than the other. (rottentomatoes.com)