| Term | Definition |
| alibi | an excuse someone gives for why they couldn't have committed the crime |
| clue | anything that gives information to solve the crime |
| deduction | drawing a conclusion |
| detective | an investigator looking for clues |
| evidence | anything left behind at the scene of a crime |
| hunch | a guess or feeling not based on facts |
| motive | a reason someone did the crime |
| red herring | a false clue that throws you off track |
| sleuth | another word for detective |
| suspect | anyone who might have committed the crime |
| witness | someone who saw the crime happen |