Cite This! Please copy/paste the following text to properly cite this HowStuffWorks article: Wilson, Tracy V.. “How Private Investigators In Sydney Work” 28 February 2007. HowStuffWorks.com. 17 October 2010. Photo courtesy Sherlock Holmes is one of the world’s most famous fictional detectives. Related Ad Categories Related Content Prices: Books $11.00 – $16.00 $11.00 – $13.00 $5.61 – $8.71