A method and apparatus for integrating intercepted information with information obtained from an at least one data retention source, the method comprising receiving intercepted information from an interception source, receiving information from a data retention source, and analyzing the information received from the data retention source, in association with the intercepted information. The intercepted information can comprise meta data related to the intercepted communications, and/or the contents of the communication themselves. This enables a user such as a law enforcement agency to reveal possibly indirect connections between target entities s wherein the connections involve non-target entities. The method and apparatus combine interception and content analysis methodologies with traffic analysis techniques.