The Lineup - Dead Porter
The coastguard has found a body floating in the bay, dressed as a porter. Quine recognizes him as one of those who participated in the lineup, presumably eliminated by the drug ring to keep his mouth shut.
Then ... Note the Palace of Fine Arts in the center of the far shore.
and Now ...
Below, a Google satellite view of the location. The scene was filmed on the coastguard pier near Crissy Field in the Presidio not far from Fort Point. Doyle Drive crosses at bottom of the picture. The same pier is one of two seen in the view towards Crissy Field in the movie 'Dark Passage' .