@inproceedings{CAIA-CP-031208F, title = {{Lawful Interception of IP Traffic}}, author = {Philip Branch}, month = {8-10 December}, year = {2003}, booktitle = {Australian Telecommunications Networks \& Applications Conference 2003}, address = {Sydney, Australia}, url = {http://atnac2003.atcrc.com/ORALS/branch.pdf} }