Here’s a recent statistic from an American study:
"Sprint Nextel provided law enforcement agencies with its customers' (GPS) location information over 8 million times between September 2008 and October 2009. This massive disclosure of sensitive customer information was made possible due to the roll-out by Sprint of a new, special web portal for law enforcement officers."
More on the blog of a PhD candidate in informatics, Slight Paranoia.
We have had some debate in Canada about law enforcement’s right to collect from ISPs (without a warrant) the name and address of people behind IP addresses. Cases have gone both . . . [more]