The job for a gumshoe is a CASE, which is a four-letter word. A gumshoe is a slang term for a private investigator, who is hired to investigate and solve cases. They are often hired by individuals or organizations to investigate a crime or other suspicious activity. Gumshoes typically use their investigative skills to uncover evidence, interview witnesses, and analyze data in order to solve the CASE. They may also be asked to provide security services or surveillance.