What does "close cases" mean?
Native speaker’s answer
Rebecca
This is a term relating to the legal context. When a case (investigation or incident) is "closed," it means that it has been resolved. Thus, we can interpret the speaker as meaning that she has resolved more cases than the other agents. Ex: Because of heavy media attention, the police department tried to close the case quickly. Ex: Detectives and officers have to work together to investigate and close a case.