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
James Callaghan a Civil Service exam which enabled him to become a senior tax inspector, and that same year he became the Kent branch secretary of the AOT. The following year he was elected to the AOT's national executive council. In 1934, he was transferred to Inland Revenue offices in London. Following a merger of unions in 1936, Callaghan was appointed a full-time union official and to the post of Assistant Secretary of the Inland Revenue Staff Federation (IRSF), and resigned from his Civil Service duties. During his time working as a tax inspector in the early-1930s, Callaghan met his future wife