Detective work is a profession that involves investigating and solving crimes. It requires the use of various skills such as tracing, CASE analysis, tailing, and snooping. Tracing involves finding clues and leads to help solve a CASE. CASE analysis involves examining evidence and facts to determine the cause of a crime. Tailing involves following a suspect to observe their activities. Snooping involves gathering information through surveillance or other means. Cases are the individual investigations that detectives work on. Traces are the clues and evidence left behind by criminals.