When McGarrett finds the crucial evidence, he says, "That's my corpus delicti!" The Latin term "Corpus Delicti" means "body of the crime"; it is the concrete evidence necessary to prove a crime.
First time the series incorporated United's new 747 service into production. Previously, aircraft scenes at Honolulu airport used United DC-8s. HNL added new terminal facilities between 1970-71 to accommodate the 747 which are also incorporated into the episode.
Footage of the two men moving a dumpster down the alley to the dump truck (3:10), is used again later in this same episode (18:01).
The same goes for the footage when looking down into the burning furnace. (4:11 & 39:14)
The same goes for the footage when looking down into the burning furnace. (4:11 & 39:14)
During McGarrett's confrontation with Furtado about his involvement in disposing of the bodies, Furtado tries to push McGarrett over the rail into the incinerator below and a struggle ensues with McGarrett clinging to the rail. After McGarrett is able to free himself from Furtado, an obvious stunt double for McGarrett climbs over the rail to safety.
Johnny Oporta would be mentioned again later on in "For a Million, Why Not?". McGarrett would be attending his trial on the big island.