%T Telecommunications data retention - an overview %A Nigel Brew %I Parliamentary Library (Australia) %D 2012 %K Information technology, %K Crime, %K National security, %K Privacy, %K Data retention %U https://apo.org.au/node/31600 %X This background note outlines the types of communications data generated by use of the Internet, email and phones, why law enforcement agencies want it retained, and what existing access law enforcement agencies have to such data. %9 Report