The "case" in this OVA is a lighter, non-murder mystery revolving around a smashed bottle of Inspector Shiratori's most prized and expensive wine.
Heiji Hattori and Conan Edogawa team up to find the culprit. Heiji initially deduces that a mouse may have caused the bottle to fall. Detective Conan OVA 02: 16 Suspects Episode 1
Just as Shiratori is about to serve his valued vintage to the guests, he finds the bottle shattered on the floor. The "case" in this OVA is a lighter,
Because the wine cellar was only accessible to those at the party, all 16 people present—including Shiratori himself and major characters like Conan, Ran, Kogoro, Heiji, and Kazuha—are considered suspects. Just as Shiratori is about to serve his
* 24 Mar 2002. Japan. ... * 24 Mar 2002. TV. 25 mins More at TMDB. Letterboxd 16 Suspects!? - Detective Conan Wiki
This OVA provides background details, such as the fact that Genta Kojima's family owns a liquor store, "Kojima Liquors". Runtime: Approximately 26 minutes. Detective Conan OVA 02: 16 Suspects (2002) - Letterboxd