The bark of the cork oak is used to produce wine stoppers (corks). Closures such as stoppers or screw caps are common for these retail packages. The inventor of cork-based wine stoppers is unknown. The best quality of cork, used for bottle stoppers, was grown in Catalonia. The white glass bottles gave way to plastic, and the gray stoppers to red. They were occasionally referred to as "short relievers", "stoppers" and "closers". Stoppers of perishable materials, which have rarely survived, were used to seal the contents. The other three were decoys referred to as "stoppers". Whatley worked with the Mount Airy Crime Stoppers Division as they monitored the case. Lafayette Crime Stoppers Inc. The case was decided in Lafayette Crime Stoppers Inc.'s favor. He reported the tip through the Crime Stoppers tip line. The LPD participates in the Lafayette Crime Stoppers program. Organizations such as America's Most Wanted and Crime Stoppers help catch these criminals. Some sporting arms are also referred to as "stoppers" or "stopping rifles". Popular street racing venues are often discovered by police after receiving information from Crime Stoppers.