A detective, at times, is a person who is tasked with solving mysteries and uncovering the truth. They use a variety of methods to do this, such as tracing, tailing, and finding. Traces, TAIL, finder, and tracer are all words that can be used to describe the work of a detective. Traces refer to evidence left behind by a suspect, tailing involves following a suspect, and finder and tracer refer to the detective's ability to locate and track down clues.