| A | B |
| Stop and Frisk | An officer can stop and question a person on the reasonable suspicion that the person has committed, is in the process of committing, or is about to commit a crime. |
| Reasonable Suspicion | Officer has good reason to think someone is behaving in a criminal way. |
| Search Pursuant to a Lawful Arrest | A search an officer can make of a person, without a warrant, after an arrest. |
| Hot Pursuit | Chasing someone down without a warrant after that person has committed a crime. |
| Exigent Circumstances | Urgent circumstances. |
| Consent | Permission. |
| Eavesdropping Warrant | A warrant to listen to private telephone conversations. |
| Suppression of Evidence | Not allowing evidence to be used against someone. |
| Contraband | Illegal items. |
| Plain View | Something you can see out in the open. |
| Good Faith | Making an "honest mistake." |
| Exclusionary Rule | Evidence obtained illegally cannot be used in court against you. |
| Bench Trial | Defendant waives right to trial by jury and is tried only by a judge. |
| Due Process | Right to be treated fairly by the government. |
| Exclusionary Rule | Evidence obtained illegally cannot, but in most cases, be used against a defendant in trial. |
| Probable Cause | Enough evidence for a reasonable person to believe a crime has been or is being committed. |
| Subpoena | Document ordering someone to appear in court. |
| Warrant | Document obtained by government officials from a judge which authorizes a search. |