While referred to as a "northernmost private island wildlife reserve," the plot draws inspiration from the real-life restricted island of Ni'ihau, which is often associated with the term "Kapu" (forbidden). "Hawaii Five-0" Kapu (Forbidden) (TV Episode 2013) - IMDb
The primary setting for the murder investigation. [S3E12] Kapu (Forbidden)
Depending on the time zone and viewer votes, the identified killer varied: While referred to as a "northernmost private island
Accompanied by his nephew Eric Russo , a wayward teen from New Jersey who develops an interest in forensic science during the investigation. Suspects and Viewer Choice [S3E12] Kapu (Forbidden)
The episode is notable for its interactive format, where viewers were invited to vote in real-time via the show's website to choose the killer from three different suspects.