20 DSST Criminal Justice practice questions, with answers and video walkthroughs

Twenty practice questions for DSST Criminal Justice, in the real exam's style. Score 16 of 20 here and you are in passing range. Miss more than four, and the pattern of your misses points straight at the topic to review next. Every question below is explained on video, including why the wrong answers trap most test-takers.

What students preparing for this exam tell us is that steady practice in the exam's format, with an explanation for every miss, is what moves a score. Use these the same way: answer, check, and read why the wrong choices are tempting. For the full plan around them, see the DSST Criminal Justice pillar guide.

Watch the full video walkthrough above, then test yourself on the twenty questions below. Each one is explained on the video, including why the wrong answers trap most test-takers.

Questions 1 to 5 (questions 1 to 5)

1. The three main components of the American criminal justice system are the police, the courts, and: Corrections. The criminal justice system has three core parts: police, who enforce the law, the courts, who decide guilt and sentence, and corrections, which carries out punishment through jails, prisons, probation, and parole.

2. A model of criminal justice that stresses speed, efficiency, and a presumption that the accused is guilty is known as the: Crime Control Model. Herbert Packer described two competing models. The crime control model values quick, efficient conviction of the guilty, while the due process model emphasizes individual rights and careful protection against error.

3. The principle that a person is considered innocent until proven guilty places the burden of proof on the: Prosecution. In a criminal trial the prosecution, acting for the government, must prove guilt beyond a reasonable doubt. The defendant never has to prove innocence, because the law presumes it.

4. Behavior that violates the law but harms no clear victim, such as illegal gambling or public drug use, is often called a: Victimless Crime. Victimless crimes, sometimes called public order offenses, involve willing participants and no obvious complaining victim. Whether to criminalize them at all is a long-running debate in criminal justice.

5. The most serious category of crime, typically punishable by more than one year in prison, is a: Felony. Crimes are graded by seriousness. A felony is the most serious, carrying more than a year of imprisonment, while a misdemeanor is a lesser offense punished by a fine or under a year in jail.

Questions 6 to 10 (questions 6 to 10)

6. The primary, day-to-day function of patrol officers in most police departments is: Preventing Crime and Responding to Calls for Service. Patrol is the backbone of policing. Officers on patrol deter crime by their visible presence and spend most of their time answering calls for service, far more than making arrests.

7. The Federal Bureau of Investigation is part of which level of government? Federal. The FBI is a federal agency housed in the Department of Justice. It investigates federal crimes such as kidnapping, terrorism, and bank robbery, jurisdiction that crosses state lines.

8. Under the Fourth Amendment, before a judge issues a search warrant, police generally must show: Probable Cause. The Fourth Amendment protects against unreasonable searches. To get a warrant, police must show probable cause, a reasonable basis to believe evidence of a crime will be found in the place to be searched.

9. In Terry v. Ohio, the Supreme Court ruled that an officer may stop and pat down a suspect based on: Reasonable Suspicion. Terry v. Ohio created the stop and frisk rule. An officer who has reasonable suspicion, a lower standard than probable cause, may briefly detain a person and pat the outer clothing for weapons.

10. Police discretion refers to the: Freedom of an Officer to Choose Among Possible Courses of Action. Officers cannot enforce every law against every violation, so they exercise discretion, deciding when to warn, cite, or arrest. This judgment is a defining and sometimes controversial feature of policing.

Questions 11 to 15 (questions 11 to 15)

11. Evidence obtained through an illegal search is generally barred from trial under the: Exclusionary Rule. The exclusionary rule keeps illegally obtained evidence out of court. Established for federal cases and extended to the states in Mapp v. Ohio, it is meant to deter police from violating constitutional rights.

12. The Supreme Court case Gideon v. Wainwright guaranteed defendants the right to: An Attorney Even If They Cannot Afford One. Gideon v. Wainwright held that the Sixth Amendment requires states to provide a free attorney to defendants facing serious charges who cannot afford one, the foundation of the public defender system.

13. The negotiation in which a defendant agrees to plead guilty in exchange for a reduced charge or sentence is called: Plea Bargaining. The vast majority of criminal cases, well over ninety percent, end in a plea bargain rather than a trial. The defendant pleads guilty in exchange for a lighter charge or sentence, which clears crowded court dockets.

14. The process of questioning potential jurors to select an impartial jury is known as: Voir Dire. Voir dire is the jury selection process. Attorneys and the judge question prospective jurors and may remove some, aiming to seat a panel that can weigh the evidence without bias.

15. In a criminal trial, the standard of proof required to convict a defendant is: Beyond a Reasonable Doubt. Beyond a reasonable doubt is the highest standard of proof in the legal system. Because a criminal conviction can cost a person their liberty, jurors must be firmly convinced of guilt, not merely persuaded it is likely.

Questions 16 to 20 (questions 16 to 20)

16. The goal of punishment that aims to reform an offender so they do not commit future crimes is: Rehabilitation. Rehabilitation seeks to change the offender through education, treatment, or counseling so they can return to society law-abiding. It contrasts with retribution, which focuses on deserved punishment for the crime.

17. The conditional release of an inmate from prison before the full sentence is served, with continued supervision, is called: Parole. Parole releases an inmate early under supervision in the community. It differs from probation, which is a sentence served in the community instead of prison, often with no incarceration at all.

18. A sentence served in the community under supervision, imposed instead of incarceration, is: Probation. Probation lets an offender remain in the community under conditions set by the court, such as regular check-ins and avoiding new offenses. Violating those conditions can send the offender to prison.

19. The theory of punishment that justifies penalties as a way to discourage others from committing crimes is known as: General Deterrence. General deterrence aims to discourage the public at large by making an example of the punished offender, while specific deterrence focuses on stopping that one offender from reoffending.

20. In the American juvenile justice system, the primary historical emphasis has traditionally been on: Rehabilitation and Treatment of the Young Offender. The juvenile system grew out of the idea that young offenders can still be reformed, so it has historically stressed rehabilitation and treatment over punishment, using its own courts and a separate vocabulary from the adult system.

What to do with your score

The point of twenty questions is not the twenty, it is the pattern. Mark which topic each miss came from, then spend your next session on that topic alone. None of it requires starting over, only tightening the spots that cost you points.

A single twenty-question set is a snapshot, not a study plan. To pass with margin you need volume: enough questions, in the exam's format, with explanations that turn a wrong answer into a correction. That is what Flying Prep's DSST Criminal Justice practice is built for: every question explained, with a free trial before you decide.