The Mayor’s Geek Squad

It was a case for a digital Sherlock Holmes. Last fall, the city’s Department of Environmental Protection wanted, finally, to crack down on restaurants that were illegally dumping cooking oil into sewers in their neighborhoods — congealed yellow grease is responsible, the department says, for more than half of New York’s clogged drains. The question, of course, was how to find the culprits?
http://www.nytimes.com/2013/03/24/nyregion/mayor-bloombergs-geek-squad.html?ref=nyregionspecial&_r=0