Detective Department is a free game available on iPhone that challenges players to manage entry permissions for a building. Players take on the role of a security officer, tasked with allowing or denying entry to various subjects. The game demands keen observation and attention to detail, as overlooking any critical signs can lead to dire consequences for the character.

The gameplay focuses on quick decision-making and strategic thinking, as players must analyze each subject's appearance and behavior to determine their eligibility for entry. With its engaging mechanics and immersive atmosphere, Detective Department offers a unique blend of suspense and strategy, making it a compelling choice for fans of puzzle and management games.