Which of the following must an officer possess to randomly stop a vehicle?

• A. A probable cause
• B. A random check policy
• C. Visible suspicion only
• D. None of the above

Answer: (A)

An officer must possess probable cause to randomly stop a vehicle. Probable cause is a legal standard that requires reasonable grounds to believe that a law has been violated or that a crime is in progress. This standard is critical because it protects individuals against arbitrary or unjustified stops by law enforcement.

In traffic law, officers cannot stop vehicles without sufficient justification. This is to ensure that the rights of motorists are respected and that stops are conducted for valid reasons related to law enforcement. Probable cause can be established through various observations, such as erratic driving behavior, traffic violations, or other indicators suggesting illegal activity.

The other options do not provide appropriate standards for conducting a traffic stop. A random check policy might imply concepts of random inspections, but these must still align with constitutional protections and cannot operate purely on a whim. Visible suspicion alone may not meet the legal standard required for a justified stop, as it lacks the comprehensive basis required by law. Therefore, possessing probable cause is essential for an officer to conduct a random stop effectively and legally.