Of particular concern is Clause 16 of the former Bill C-52 allowing security services unrestricted access to any device identification data from an ISP or other telecommunications service provider without a warrant. This will allow law enforcement to identify individuals involved in a striking array of online activity including anonymous political opinions made in blog posts or newspaper comments, location data posted online from a smart phone, social networking activity, private online instant message or email exchanges, and a host of currently unforeseeable future online interactions that are sure to come with new innovations and services. This unrestricted access to e-mail addresses will make it possible to track individuals across a vast range of online services, activities, and even locations.
Angus also points to the lack of oversight built into the bill: