Dave Holden is the Blade Runner assigned to test new employees at the Tyrell Corporation on the premise that the escaped replicants might try to infiltrate the company in the hopes of extending their four-year lifespans. He has an excellent reputation as a Blade Runner. However, Holden underestimates the Nexus-6 Replicant; new replicants are difficult to detect even with the Voight-Kampff test. During the test, Leon becomes noticeably agitated at Holden's questions. He pulls out a gun and shoots the officer, who is left in critical medical condition. Leon escapes. Close examination shows that despite presumably being injured by Leon's first shot, Holden managed to draw his pistol, before Leon's second shot crippled him and sent him crashing into a desk.