Canada

an IP address “is the key to unlocking a user’s internet activity and, ultimately, their identity, such that it attracts a reasonable expectation of privacy.”

Yes and no, an IP address can be used to correlate activity with a particular device at a particular time. It would be better to establish that an IP address is not enough to legally identify a user. Investigators should be required to provide more substantial evidence of a particular user's activity than that it originated from a particular IP.

“Canadians can have the peace of mind that their online activities are safer from the prying eyes of the state,” said Vibert Jack, the association’s litigation director.

Well that one is just a flat out lie.