Which police department is not listed among the stations mentioned?

The Tustin Police Department is not listed among the stations mentioned, which makes this the correct answer. In the context of specific police stations or departments referenced in a particular scenario or list, it’s important to recognize that not all cities or jurisdictions are always represented. In this case, both Seal Beach, Costa Mesa, and Westminster may have had their departments included in the discussion, whereas Tustin was omitted. This selection highlights the need for law enforcement personnel to be familiar with the organizational structure and jurisdictional boundaries of the different police departments they may encounter.