bounty-hunter testing requirement

The bounty-hunter testing requirement is the legal and procedural mandate that a bounty hunter must administer a recognized empathy test—specifically the Voigt-Kampff scale—to a suspected android before retiring it, and that failure to do so or a flawed test result can invalidate the kill and expose the hunter to criminal liability. This rule governs the entire profession, shaping how hunters approach their quarry and providing the only legitimate basis for lethal action against androids. It is the thin line that separates a lawful bounty hunter from a murderer, and the novel repeatedly tests its limits.

Legal Basis and Procedure

The requirement is rooted in the principle that an android cannot be killed without first being identified through a valid test. When Rick Deckard confronts Roy Baty and Irmgard Baty in their apartment, he initially attempts to gain entry by pretending to be the special John Isidore. Irmgard Baty says, "You have to administer tests," and Roy Baty tries to push the door shut and activate an electronic device. Deckard then fires, and after the shot he tells Roy Baty, "You've lost your legal basis, by firing on me. You should have forced me to give you the Voigt-Kampff test. But now it doesn't matter." This exchange makes explicit that the android's act of firing first—rather than insisting on the test—relieves the bounty hunter of the obligation to test before killing. The legal basis is thus a procedural safeguard that can be forfeited by the android's own aggression.

Consequences of Violation

A bounty hunter who retires an android without proper testing risks being charged with homicide. This is demonstrated when Deckard is arrested by Officer Crams after Luba Luft calls the police. Crams books him for "304" and "612.4" and "representing himself to be a peace officer," and the desk sergeant adds "406.7." The arrest is based on the claim that Deckard killed a human—Polokov—whose body is found in his car. The bone marrow test later proves Polokov was an android, but the arrest itself shows that without a valid test result, the bounty hunter is treated as a murderer. The requirement thus protects the hunter from legal jeopardy only when properly followed.

The Voigt-Kampff Mandate

The Voigt-Kampff empathy test is the specific instrument mandated by the requirement. It measures capillary dilation and eye-muscle tension in response to morally shocking stimuli, and it is the only test currently capable of distinguishing the new Nexus-6 brain unit. When Deckard goes to Seattle to test the Rosen Association's Nexus-6 types, Inspector Harry Bryant warns him that if the test fails to identify a human subject as human, the consequences would be "awkward" and would eventually become public. The mandate is therefore not merely procedural but existential: the entire bounty system depends on the test's reliability. When Rachael Rosen, an android, nearly passes the test, the Rosen Association uses this to try to blackmail Deckard into abandoning the test altogether, threatening his career and the department's ability to hunt Nexus-6 androids.

The Requirement as a Moral Boundary

The testing requirement also serves as a moral boundary that distinguishes bounty hunters from mere killers. Phil Resch, another bounty hunter, kills Inspector Garland without testing him first, but Garland had already drawn a laser tube on Resch, forfeiting his legal protection. Resch then kills Luba Luft in the elevator without completing the test, and Deckard is disturbed by Resch's eagerness to kill. Deckard later reflects that Resch "likes to kill" and needs only a pretext. The requirement thus functions not only as a legal rule but as a check on the hunter's own violence. When Deckard himself considers killing Rachael Rosen—who is not an escaped android but the legal property of the Rosen Association—he hesitates and ultimately cannot do it, recognizing that without the legal basis of a test and an escape status, the act would be murder.