Dirty Harry local and federal police committing offences and overstepping their authority by entrapment and obstruction of justice. Author McGilligan, argued that America needed a hero, a winner at a time when the authorities were losing the battle against crime. The box-office success of "Dirty Harry" led to the production of four sequels. In the 2007 film "Zodiac", also set in San Francisco and inspired by the Zodiac Killer, cartoonist Robert Graysmith approaches police detective Dave Toschi at the cinema, where he is watching "Dirty Harry" with his wife. When Graysmith tells Toschi he is going to catch the Zodiac killer, Toschi
Dirty Harry (character) the present system, despite its flaws, to the vigilante alternative. In his fight against criminals, however, including the fellow officers on the death squad, Callahan is merciless and shows no hesitation or remorse at killing them. In "Dirty Harry", several explanations are suggested for his nickname. When his partner Chico Gonzalez asks of its origins, Frank DiGiorgio says that "that's one thing about our Harry; [he] doesn't play any favorites. Harry hates everybody: limeys, micks, hebes, fat dagos, niggers, honkies, chinks- you name it," even though DiGiorgio was joking; Callahan is not a racist. After being called to talk down