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
Clean Up Australia Australia Day is held on the first Sunday of March every year and encourages people to clean up their local areas. Any person can register a place they plan to clean up on the Clean Up Australia website and others can join them there. Activities on the day include removing large items such as car bodies from water ways and the collection of general waste lying around. Clean Up Australia Day was first held in January 1989. The idea was born out of an Australian Bicentenary event, "Clean-Up Lake Macquarie", which was instigated in 1987 by Ivan Welsh as Mayor