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In the forceEdit
Hammer takes pride in her job as a police officer. She generally has a somewhat extroverted and upbeat personality, although she does overreact at times and has a habit of communicating almost entirely by shouting during investigations. Another habit of hers is a tendency to incompletely seal crime scene doorways with police tape. Hammer has an aversion to lacquer, due to it potentially giving a nasty rash by touching it; as a result, she feels itchy from just hearing the word "lacquer".
- Her first name is unknown, although the "Extra" section of the third volume of the manga does hint that it begins with "Ka-".
- Her surname may be a reference to a judge's gavel (thereby symbolizing her sense of justice as a police officer) or to her forceful personality.