(Auto)complete fail: how search suggestions keep catching Google out

Sometimes, Google is just a bit too good at carrying out its stated goal to "organise the world's information and make it universally accessible and useful". Take search suggestions, the helpful feature that sees Google autocomplete phrases typed into its search engine. Type "How can I cook macaroni ..." and the site will add "cheese" on to the end, saving you six whole keystrokes. But it turns out there could be some less desirable implementations of the technology. The search-suggestion feature, and a similar feature that offers "related searches" at the bottom of the results page, could be helping to compromise the right to anonymity of complainants in UK rape and sexual assault cases.