How do officers get promoted?
When a sergeant becomes a lieutenant or a major becomes a colonel, who makes the decision and what generally merits the promotion? On TV and in movies, it seems like one’s superior can just haphazardly hand out new captain’s shields or extra chevrons on a whim with no departmental oversight. Does anyone out here know what really happens?
This question is in the General Section. Responses must be helpful and on-topic.