The first ragged-tooth shark to go on display in the Two Oceans Aquarium in October 1995 returned to the ocean in March 2006. Dee joined Maxine and Val, who were tagged and released in 2004 and 2005 respectively as part of the Save Our Seas Foundation Maxine, Science, Education and Awareness (M-Sea) Programme which is an AfriOceans Conservation Alliance initiative.

Like Maxine and Val, Dee was also tagged by scientists with a pop-up archival transmission tag, a spaghetti tag and an ultrasonic tag.