alibi- a statement of where someone was at the time of a crime, usually a place a ways from where the crime was committed clue- something that helps solve a mystery crime- an act that is against the law detective- a person who gathers information to help solve a crime, also an investigator evidence- a clue that helps prove who committed the crime mystery- something that is unknown can be who committed an act, lawful or not red herring- a false clue to lead investigator off the correct track sleuth- a detective, investigator suspect- a person who may have committed the crime victim- who the crime happened against witness- someone who saw the crime and has information about it