Final answer:
An exception to the standard requirement for individualized suspicion before stopping a vehicle includes certain types of checkpoints such as DUI or immigration checkpoints, which have been deemed lawful due to public safety interests.
Step-by-step explanation:
An exception to the usual rule requiring individualized suspicion before stopping a vehicle is certain types of checkpoints. In the landmark case of Terry v. Ohio, the Supreme Court established that police may stop a person if they have a reasonable suspicion that the person has committed, or is about to commit a crime, and may frisk the suspect for weapons if there is a reasonable suspicion that the suspect is armed and dangerous, without violating the Fourth Amendment. However, this ruling applies to individualized suspicion, and there are scenarios, such as DUI or immigration checkpoints, where vehicles might be stopped without specific suspicion on individual drivers. These checkpoints have been deemed exceptions to the general rule due to public safety interests.