Which of the following is true about random checkpoints for cars?

• A. They are allowed in all circumstances
• B. They are not allowed
• C. They are allowed with a warrant
• D. They are allowed only for certain violations

Answer: (B)

Random checkpoints for cars are typically not allowed because they can be considered a violation of individuals' Fourth Amendment rights against unreasonable searches and seizures. The legal framework surrounding checkpoints often requires that any stop must be based on reasonable suspicion or probable cause. The U.S. Supreme Court has indicated that while some types of checkpoints, such as for DUI or border control, are permissible under specific circumstances, random stops without any particular cause are generally seen as unconstitutional.

Therefore, the assertion that they are not allowed is consistent with existing legal principles that protect citizens from arbitrary government action. Checkpoints must generally serve a significant public interest, and their effectiveness must be weighed against the privacy rights of individuals. In practice, this means that law enforcement agencies cannot randomly stop vehicles without any justification.