Christopher Parsons has a great post on lawful access that provides background on what it contains and the reaction from many experts and stakeholders.

Come back with a warrant by Rosalyn Davis (CC BY-NC-SA 2.0) https://flic.kr/p/aoPzWb
Lawful Access
Liberal Party Stands Against Warrantless Lawful Access
The Liberals have adopted a strong stand against warrantless disclosure of personal information under lawful access, a notable shift in position from its previous support for lawful access reforms.
What’s the Justification for Warrantless Access to Customer Information?
David Fraser has a great post on lawful access and the government’s inability to “come up with a shred of a justification” for mandatory disclosure of personal information under lawful access.
Ontario Privacy Commissioner Cavoukian on Lawful Access
Ontario Privacy Commission Ann Cavoukian has written an important op-ed adding her voice to the critics of lawful access plans, arguing that “lawful access” is a misleading term for a system of expanded surveillance.
Why Lawful Access Legislation Should Not Be Allowed to Pass
David Fraser on why a recent revelation from UK provides yet further evidence that lawful access in its last form should not be allowed to pass.