Federal Court Chief Justice Paul Crampton said CSIS failed to show a sufficient connection between its investigation and the people whose privacy rights would be compromised. As part of a terrorism investigation, CSIS was seeking judicial warrants for the names and street addresses of telecom subscribers and, in some cases, information relating to computer IP addresses. In the ruling, Crampton said CSIS had not provided the court with “any understanding whatsoever” of the specific link between the service’s “very broadly defined” investigations and the yet-to-be-discovered phone numbers and identifiers. A simulator, sometimes known as an IMSI catcher, mimics a cellular tower, making all nearby mobile phones connect to it. However, the information gathered in the case at hand potentially helped CSIS determine the person’s contacts and communication patterns, Crampton added.

Source: National Post November 28, 2017 18:00 UTC