The first case involves upholding the search of a car after a traffic stop was completed and a drug dog gave a hit on the car. Illegal firearms were found. See the opinion on US vs. Moore.
The second case also involves a traffic stop and a search of a vehicle based on the smell of burnt marijuana. Again the legality of the search was upheld. See the opinion on US vs. Snyder.
See case summaries in the August Issue of The Informer by the Federal Law Enforcement Training Center.