TV SeriesEditIn Return to Sender, Dexter plans to dump his kill tools along with his blood slide box, in order to leave behind no trace, if by chance he becomes a suspect for the murder of Valerie Castillo. After dumping his kill tools, he reminisces his previous kills as he goes through the slides and eventually notices a smile on the blood slide of Valerie (the work of his "new friend", the Ice Truck Killer). Knowing that his friend isn't angry at all, but is just testing him, he decides to keep his blood slide box.
Later on in the series, numerous bodies are discovered in the Bay Harbor and so the FBI are brought in Miami to oversee the work of the police, in identifying and apprehending the Bay Harbor Butcher. In Resistance Is Futile, Sergeant James Doakes is informed by FBI Special Agent Frank Lundy that one of the butcher victims, Anthony Rodrigo, got off the hook, because of bad blood work. Having sensed something off about Dexter for years, Doakes is convinced that he may be behind the killings and may have purposely fudged the blood work to save Rodrigo for himself. Upon vetting Dexter and going through his apartment, Doakes finds his blood slide box and takes it for analysis in an overseas lab. However, he leaves them in his car's trunk for the moment, until he can confirm arrangements with his friend Leonis to have them analysed. This turns out to be disastrous as his departure from the country immediately after walking out of his interview with Lundy, makes him a suspect in the case and allows the latter to get a warrant on his apartment and car, where the FBI find the blood slides. Doakes returns to Miami, but hides himself from the police, until he can get convincing evidence of Dexter being the real culprit. His attempt to arrest Dexter fails, as Dexter manages to subdue him and lock him inside a cabin. In There's Something About Harry, Dexter gets Doakes to drink water with sedative mixed inside, causing him to faint and siezes this opportunity by putting Doakes' finger prints on his kill tools, in order to frame him for the murders. The tools are found by a Scuba Diving class, giving the police and the FBI further evidence of Doakes' guilt (Left Turn Ahead).
Dexter's newest kill tools are abandoned at the end of Monkey In a Box, when he captures his main adversary in the season (Oliver Saxon). He decides to leave them behind as evidence for Saxon, when he gets arrested (deciding not to go ahead with the kill, since he no longer feels the need). This plan fails, however, as Saxon gets freed by US Marshal Max Clayton and ends up killing Clayton and shooting Dexter's sister, Debra Morgan, whom Dexter called to arrest Saxon.
NovelsEditIn the comics that follow the continuity of the novels, Dexter's kill tools are depicted for the first time on Issue #3.
Dexter: The GameEditIn the game, Dexter stores his tools in a wooden box with multiple compartments.
The tools depicted include but are not limited to: