1. Whether or under what circumstances the Fourth
Amendment permits courts to balance the risk of
harm posed by drunk driving against the
intrusiveness of a vehicle stop when determining
whether a Terry stop based on an anonymous tip is
supported by reasonable suspicion.

2. Whether the Terry stop in this case, which was
based on an anonymous and conclusory tip of an
"intoxicated driver," was supported by reasonable
suspicion.

Whether the Fourth Amendment permits balancing drunk-driving risk against stop intrusiveness