✓ What exactly is the rule about crossing the centerline.
✓ An officer would have reasonable, articulable suspicion for an investigatory stop without first considering whether the circumstances he or she observed would satisfy each element of a particular offense.
✓ The one police trap you may not be able to escape from.
✓ Reasonable, articulable suspicion can exist for just about anything.
✓ The simple fact about human drivers is that they are not perfect.